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Finding the Fourth Proportional to 399,819.90, 599,833.65 and 119,337.18

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Solution

The fourth proportional to 399,819.90, 599,833.65 and 119,337.18 is: 179,036.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,819.90 : 599,833.65 = 119,337.18 : x
  2. Step 2: Convert to fraction form
    399,819.90/599,833.65 = 119,337.18/x
  3. Step 3: Cross multiply
    399,819.90x = 599,833.65 × 119,337.18
  4. Step 4: Simplify right side
    399,819.90x = 71,582,456,260.11
  5. Step 5: Solve for x
    x = 71,582,456,260.11/399,819.90
  6. Step 6: Final answer
    x = 179,036.75

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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.