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Finding the Fourth Proportional to 224,020.80, 336,031.20 and 83,761.20

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Solution

The fourth proportional to 224,020.80, 336,031.20 and 83,761.20 is: 125,641.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,020.80 : 336,031.20 = 83,761.20 : x
  2. Step 2: Convert to fraction form
    224,020.80/336,031.20 = 83,761.20/x
  3. Step 3: Cross multiply
    224,020.80x = 336,031.20 × 83,761.20
  4. Step 4: Simplify right side
    224,020.80x = 28,146,376,549.44
  5. Step 5: Solve for x
    x = 28,146,376,549.44/224,020.80
  6. Step 6: Final answer
    x = 125,641.80

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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.