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Finding the Fourth Proportional to 268,515, 370,542.84 and 147,656.16

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Solution

The fourth proportional to 268,515, 370,542.84 and 147,656.16 is: 203,761.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,515 : 370,542.84 = 147,656.16 : x
  2. Step 2: Convert to fraction form
    268,515/370,542.84 = 147,656.16/x
  3. Step 3: Cross multiply
    268,515x = 370,542.84 × 147,656.16
  4. Step 4: Simplify right side
    268,515x = 54,712,932,869.89
  5. Step 5: Solve for x
    x = 54,712,932,869.89/268,515
  6. Step 6: Final answer
    x = 203,761.18

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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.