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Finding the Fourth Proportional to 502,979.40, 754,062.87 and 165,809.61

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Solution

The fourth proportional to 502,979.40, 754,062.87 and 165,809.61 is: 248,580.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,979.40 : 754,062.87 = 165,809.61 : x
  2. Step 2: Convert to fraction form
    502,979.40/754,062.87 = 165,809.61/x
  3. Step 3: Cross multiply
    502,979.40x = 754,062.87 × 165,809.61
  4. Step 4: Simplify right side
    502,979.40x = 125,030,870,390.18
  5. Step 5: Solve for x
    x = 125,030,870,390.18/502,979.40
  6. Step 6: Final answer
    x = 248,580.50

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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.