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Finding the Fourth Proportional to 321,062.05, 443,073 and 175,881.70

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Solution

The fourth proportional to 321,062.05, 443,073 and 175,881.70 is: 242,720.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,062.05 : 443,073 = 175,881.70 : x
  2. Step 2: Convert to fraction form
    321,062.05/443,073 = 175,881.70/x
  3. Step 3: Cross multiply
    321,062.05x = 443,073 × 175,881.70
  4. Step 4: Simplify right side
    321,062.05x = 77,928,432,464.10
  5. Step 5: Solve for x
    x = 77,928,432,464.10/321,062.05
  6. Step 6: Final answer
    x = 242,720.78

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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.