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Finding the Fourth Proportional to 268,098.96, 402,206.32 and 90,602.04

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Solution

The fourth proportional to 268,098.96, 402,206.32 and 90,602.04 is: 135,922.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,098.96 : 402,206.32 = 90,602.04 : x
  2. Step 2: Convert to fraction form
    268,098.96/402,206.32 = 90,602.04/x
  3. Step 3: Cross multiply
    268,098.96x = 402,206.32 × 90,602.04
  4. Step 4: Simplify right side
    268,098.96x = 36,440,713,092.89
  5. Step 5: Solve for x
    x = 36,440,713,092.89/268,098.96
  6. Step 6: Final answer
    x = 135,922.62

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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.