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Finding the Fourth Proportional to 399,192.67, 598,797.42 and 143,041.92

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Solution

The fourth proportional to 399,192.67, 598,797.42 and 143,041.92 is: 214,565.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,192.67 : 598,797.42 = 143,041.92 : x
  2. Step 2: Convert to fraction form
    399,192.67/598,797.42 = 143,041.92/x
  3. Step 3: Cross multiply
    399,192.67x = 598,797.42 × 143,041.92
  4. Step 4: Simplify right side
    399,192.67x = 85,653,132,647.85
  5. Step 5: Solve for x
    x = 85,653,132,647.85/399,192.67
  6. Step 6: Final answer
    x = 214,565.90

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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.