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Finding the Fourth Proportional to 145,273.91, 217,902.40 and 65,291.27

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Solution

The fourth proportional to 145,273.91, 217,902.40 and 65,291.27 is: 97,933.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,273.91 : 217,902.40 = 65,291.27 : x
  2. Step 2: Convert to fraction form
    145,273.91/217,902.40 = 65,291.27/x
  3. Step 3: Cross multiply
    145,273.91x = 217,902.40 × 65,291.27
  4. Step 4: Simplify right side
    145,273.91x = 14,227,123,179.31
  5. Step 5: Solve for x
    x = 14,227,123,179.31/145,273.91
  6. Step 6: Final answer
    x = 97,933.10

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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.