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Finding the Fourth Proportional to 484,405.28, 726,612 and 168,861.60

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Solution

The fourth proportional to 484,405.28, 726,612 and 168,861.60 is: 253,293.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,405.28 : 726,612 = 168,861.60 : x
  2. Step 2: Convert to fraction form
    484,405.28/726,612 = 168,861.60/x
  3. Step 3: Cross multiply
    484,405.28x = 726,612 × 168,861.60
  4. Step 4: Simplify right side
    484,405.28x = 122,696,864,899.20
  5. Step 5: Solve for x
    x = 122,696,864,899.20/484,405.28
  6. Step 6: Final answer
    x = 253,293.82

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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.