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Finding the Fourth Proportional to 381,755.76, 572,437.89 and 201,938.28

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Solution

The fourth proportional to 381,755.76, 572,437.89 and 201,938.28 is: 302,803.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,755.76 : 572,437.89 = 201,938.28 : x
  2. Step 2: Convert to fraction form
    381,755.76/572,437.89 = 201,938.28/x
  3. Step 3: Cross multiply
    381,755.76x = 572,437.89 × 201,938.28
  4. Step 4: Simplify right side
    381,755.76x = 115,597,122,913.43
  5. Step 5: Solve for x
    x = 115,597,122,913.43/381,755.76
  6. Step 6: Final answer
    x = 302,803.87

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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.