Home / 890,081.76-1,335,108.06-216,168.60

Finding the Fourth Proportional to 890,081.76, 1,335,108.06 and 216,168.60

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Solution

The fourth proportional to 890,081.76, 1,335,108.06 and 216,168.60 is: 324,249.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,081.76 : 1,335,108.06 = 216,168.60 : x
  2. Step 2: Convert to fraction form
    890,081.76/1,335,108.06 = 216,168.60/x
  3. Step 3: Cross multiply
    890,081.76x = 1,335,108.06 × 216,168.60
  4. Step 4: Simplify right side
    890,081.76x = 288,608,440,178.92
  5. Step 5: Solve for x
    x = 288,608,440,178.92/890,081.76
  6. Step 6: Final answer
    x = 324,249.36

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.