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Finding the Fourth Proportional to 659,860.92, 989,782.72 and 161,229.24

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Solution

The fourth proportional to 659,860.92, 989,782.72 and 161,229.24 is: 241,841.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,860.92 : 989,782.72 = 161,229.24 : x
  2. Step 2: Convert to fraction form
    659,860.92/989,782.72 = 161,229.24/x
  3. Step 3: Cross multiply
    659,860.92x = 989,782.72 × 161,229.24
  4. Step 4: Simplify right side
    659,860.92x = 159,581,915,710.73
  5. Step 5: Solve for x
    x = 159,581,915,710.73/659,860.92
  6. Step 6: Final answer
    x = 241,841.74

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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.