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Finding the Fourth Proportional to 268,527.92, 402,765.72 and 81,541.04

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Solution

The fourth proportional to 268,527.92, 402,765.72 and 81,541.04 is: 122,303.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,527.92 : 402,765.72 = 81,541.04 : x
  2. Step 2: Convert to fraction form
    268,527.92/402,765.72 = 81,541.04/x
  3. Step 3: Cross multiply
    268,527.92x = 402,765.72 × 81,541.04
  4. Step 4: Simplify right side
    268,527.92x = 32,841,935,685.15
  5. Step 5: Solve for x
    x = 32,841,935,685.15/268,527.92
  6. Step 6: Final answer
    x = 122,303.62

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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.