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Finding the Fourth Proportional to 511,689.28, 767,535.36 and 179,187.52

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Solution

The fourth proportional to 511,689.28, 767,535.36 and 179,187.52 is: 268,781.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,689.28 : 767,535.36 = 179,187.52 : x
  2. Step 2: Convert to fraction form
    511,689.28/767,535.36 = 179,187.52/x
  3. Step 3: Cross multiply
    511,689.28x = 767,535.36 × 179,187.52
  4. Step 4: Simplify right side
    511,689.28x = 137,532,757,670.71
  5. Step 5: Solve for x
    x = 137,532,757,670.71/511,689.28
  6. Step 6: Final answer
    x = 268,781.78

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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.