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Finding the Fourth Proportional to 229,982.92, 344,959.96 and 85,860.64

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Solution

The fourth proportional to 229,982.92, 344,959.96 and 85,860.64 is: 128,785.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,982.92 : 344,959.96 = 85,860.64 : x
  2. Step 2: Convert to fraction form
    229,982.92/344,959.96 = 85,860.64/x
  3. Step 3: Cross multiply
    229,982.92x = 344,959.96 × 85,860.64
  4. Step 4: Simplify right side
    229,982.92x = 29,618,482,939.97
  5. Step 5: Solve for x
    x = 29,618,482,939.97/229,982.92
  6. Step 6: Final answer
    x = 128,785.58

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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.