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Finding the Fourth Proportional to 485,040.16, 669,337.84 and 270,175.80

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Solution

The fourth proportional to 485,040.16, 669,337.84 and 270,175.80 is: 372,832.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,040.16 : 669,337.84 = 270,175.80 : x
  2. Step 2: Convert to fraction form
    485,040.16/669,337.84 = 270,175.80/x
  3. Step 3: Cross multiply
    485,040.16x = 669,337.84 × 270,175.80
  4. Step 4: Simplify right side
    485,040.16x = 180,838,886,392.27
  5. Step 5: Solve for x
    x = 180,838,886,392.27/485,040.16
  6. Step 6: Final answer
    x = 372,832.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.