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Finding the Fourth Proportional to 505,532.88, 758,248.92 and 131,555.88

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Solution

The fourth proportional to 505,532.88, 758,248.92 and 131,555.88 is: 197,320.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,532.88 : 758,248.92 = 131,555.88 : x
  2. Step 2: Convert to fraction form
    505,532.88/758,248.92 = 131,555.88/x
  3. Step 3: Cross multiply
    505,532.88x = 758,248.92 × 131,555.88
  4. Step 4: Simplify right side
    505,532.88x = 99,752,103,929.65
  5. Step 5: Solve for x
    x = 99,752,103,929.65/505,532.88
  6. Step 6: Final answer
    x = 197,320.70

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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.