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Finding the Fourth Proportional to 272,217.92, 408,326.88 and 85,244

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Solution

The fourth proportional to 272,217.92, 408,326.88 and 85,244 is: 127,866.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,217.92 : 408,326.88 = 85,244 : x
  2. Step 2: Convert to fraction form
    272,217.92/408,326.88 = 85,244/x
  3. Step 3: Cross multiply
    272,217.92x = 408,326.88 × 85,244
  4. Step 4: Simplify right side
    272,217.92x = 34,807,416,558.72
  5. Step 5: Solve for x
    x = 34,807,416,558.72/272,217.92
  6. Step 6: Final answer
    x = 127,866.00

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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.