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Finding the Fourth Proportional to 392,990.04, 588,992.04 and 168,086.52

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Solution

The fourth proportional to 392,990.04, 588,992.04 and 168,086.52 is: 251,918.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,990.04 : 588,992.04 = 168,086.52 : x
  2. Step 2: Convert to fraction form
    392,990.04/588,992.04 = 168,086.52/x
  3. Step 3: Cross multiply
    392,990.04x = 588,992.04 × 168,086.52
  4. Step 4: Simplify right side
    392,990.04x = 99,001,622,311.30
  5. Step 5: Solve for x
    x = 99,001,622,311.30/392,990.04
  6. Step 6: Final answer
    x = 251,918.91

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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.