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Finding the Fourth Proportional to 438,952.68, 658,299.15 and 186,229.98

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Solution

The fourth proportional to 438,952.68, 658,299.15 and 186,229.98 is: 279,289.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,952.68 : 658,299.15 = 186,229.98 : x
  2. Step 2: Convert to fraction form
    438,952.68/658,299.15 = 186,229.98/x
  3. Step 3: Cross multiply
    438,952.68x = 658,299.15 × 186,229.98
  4. Step 4: Simplify right side
    438,952.68x = 122,595,037,538.52
  5. Step 5: Solve for x
    x = 122,595,037,538.52/438,952.68
  6. Step 6: Final answer
    x = 279,289.87

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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.