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Finding the Fourth Proportional to 418,700.57, 627,956.52 and 119,174.51

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Solution

The fourth proportional to 418,700.57, 627,956.52 and 119,174.51 is: 178,734.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,700.57 : 627,956.52 = 119,174.51 : x
  2. Step 2: Convert to fraction form
    418,700.57/627,956.52 = 119,174.51/x
  3. Step 3: Cross multiply
    418,700.57x = 627,956.52 × 119,174.51
  4. Step 4: Simplify right side
    418,700.57x = 74,836,407,432.52
  5. Step 5: Solve for x
    x = 74,836,407,432.52/418,700.57
  6. Step 6: Final answer
    x = 178,734.91

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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.