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Finding the Fourth Proportional to 487,652.27, 731,687.68 and 188,343.02

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Solution

The fourth proportional to 487,652.27, 731,687.68 and 188,343.02 is: 282,595.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,652.27 : 731,687.68 = 188,343.02 : x
  2. Step 2: Convert to fraction form
    487,652.27/731,687.68 = 188,343.02/x
  3. Step 3: Cross multiply
    487,652.27x = 731,687.68 × 188,343.02
  4. Step 4: Simplify right side
    487,652.27x = 137,808,269,412.64
  5. Step 5: Solve for x
    x = 137,808,269,412.64/487,652.27
  6. Step 6: Final answer
    x = 282,595.36

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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.