Home / 890,230.29-1,335,347.10-216,312.16

Finding the Fourth Proportional to 890,230.29, 1,335,347.10 and 216,312.16

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Solution

The fourth proportional to 890,230.29, 1,335,347.10 and 216,312.16 is: 324,468.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,230.29 : 1,335,347.10 = 216,312.16 : x
  2. Step 2: Convert to fraction form
    890,230.29/1,335,347.10 = 216,312.16/x
  3. Step 3: Cross multiply
    890,230.29x = 1,335,347.10 × 216,312.16
  4. Step 4: Simplify right side
    890,230.29x = 288,851,815,550.74
  5. Step 5: Solve for x
    x = 288,851,815,550.74/890,230.29
  6. Step 6: Final answer
    x = 324,468.64

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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.