Home / 165,306.30-247,959.45-155,456.70

Finding the Fourth Proportional to 165,306.30, 247,959.45 and 155,456.70

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Solution

The fourth proportional to 165,306.30, 247,959.45 and 155,456.70 is: 233,185.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,306.30 : 247,959.45 = 155,456.70 : x
  2. Step 2: Convert to fraction form
    165,306.30/247,959.45 = 155,456.70/x
  3. Step 3: Cross multiply
    165,306.30x = 247,959.45 × 155,456.70
  4. Step 4: Simplify right side
    165,306.30x = 38,546,957,830.82
  5. Step 5: Solve for x
    x = 38,546,957,830.82/165,306.30
  6. Step 6: Final answer
    x = 233,185.05

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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.