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Finding the Fourth Proportional to 636,621.64, 954,773.70 and 187,253.08

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Solution

The fourth proportional to 636,621.64, 954,773.70 and 187,253.08 is: 280,832.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,621.64 : 954,773.70 = 187,253.08 : x
  2. Step 2: Convert to fraction form
    636,621.64/954,773.70 = 187,253.08/x
  3. Step 3: Cross multiply
    636,621.64x = 954,773.70 × 187,253.08
  4. Step 4: Simplify right side
    636,621.64x = 178,784,316,028.00
  5. Step 5: Solve for x
    x = 178,784,316,028.00/636,621.64
  6. Step 6: Final answer
    x = 280,832.92

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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.