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Finding the Fourth Proportional to 203,934.30, 305,901.45 and 154,167.90

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Solution

The fourth proportional to 203,934.30, 305,901.45 and 154,167.90 is: 231,251.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,934.30 : 305,901.45 = 154,167.90 : x
  2. Step 2: Convert to fraction form
    203,934.30/305,901.45 = 154,167.90/x
  3. Step 3: Cross multiply
    203,934.30x = 305,901.45 × 154,167.90
  4. Step 4: Simplify right side
    203,934.30x = 47,160,184,153.46
  5. Step 5: Solve for x
    x = 47,160,184,153.46/203,934.30
  6. Step 6: Final answer
    x = 231,251.85

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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.