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Finding the Fourth Proportional to 399,750.78, 552,109.59 and 272,204.94

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Solution

The fourth proportional to 399,750.78, 552,109.59 and 272,204.94 is: 375,951.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,750.78 : 552,109.59 = 272,204.94 : x
  2. Step 2: Convert to fraction form
    399,750.78/552,109.59 = 272,204.94/x
  3. Step 3: Cross multiply
    399,750.78x = 552,109.59 × 272,204.94
  4. Step 4: Simplify right side
    399,750.78x = 150,286,957,819.38
  5. Step 5: Solve for x
    x = 150,286,957,819.38/399,750.78
  6. Step 6: Final answer
    x = 375,951.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.