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Finding the Fourth Proportional to 274,607.88, 378,763.43 and 252,019.76

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Solution

The fourth proportional to 274,607.88, 378,763.43 and 252,019.76 is: 347,607.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,607.88 : 378,763.43 = 252,019.76 : x
  2. Step 2: Convert to fraction form
    274,607.88/378,763.43 = 252,019.76/x
  3. Step 3: Cross multiply
    274,607.88x = 378,763.43 × 252,019.76
  4. Step 4: Simplify right side
    274,607.88x = 95,455,868,725.38
  5. Step 5: Solve for x
    x = 95,455,868,725.38/274,607.88
  6. Step 6: Final answer
    x = 347,607.90

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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.