Home / 402,140.16-554,954.10-220,863.78

Finding the Fourth Proportional to 402,140.16, 554,954.10 and 220,863.78

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Solution

The fourth proportional to 402,140.16, 554,954.10 and 220,863.78 is: 304,792.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,140.16 : 554,954.10 = 220,863.78 : x
  2. Step 2: Convert to fraction form
    402,140.16/554,954.10 = 220,863.78/x
  3. Step 3: Cross multiply
    402,140.16x = 554,954.10 × 220,863.78
  4. Step 4: Simplify right side
    402,140.16x = 122,569,260,252.50
  5. Step 5: Solve for x
    x = 122,569,260,252.50/402,140.16
  6. Step 6: Final answer
    x = 304,792.39

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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.