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Finding the Fourth Proportional to 268,159.29, 402,108.93 and 155,871.83

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Solution

The fourth proportional to 268,159.29, 402,108.93 and 155,871.83 is: 233,732.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,159.29 : 402,108.93 = 155,871.83 : x
  2. Step 2: Convert to fraction form
    268,159.29/402,108.93 = 155,871.83/x
  3. Step 3: Cross multiply
    268,159.29x = 402,108.93 × 155,871.83
  4. Step 4: Simplify right side
    268,159.29x = 62,677,452,767.90
  5. Step 5: Solve for x
    x = 62,677,452,767.90/268,159.29
  6. Step 6: Final answer
    x = 233,732.17

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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.