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Finding the Fourth Proportional to 318,963.14, 440,189 and 175,723.14

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Solution

The fourth proportional to 318,963.14, 440,189 and 175,723.14 is: 242,508.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,963.14 : 440,189 = 175,723.14 : x
  2. Step 2: Convert to fraction form
    318,963.14/440,189 = 175,723.14/x
  3. Step 3: Cross multiply
    318,963.14x = 440,189 × 175,723.14
  4. Step 4: Simplify right side
    318,963.14x = 77,351,393,273.46
  5. Step 5: Solve for x
    x = 77,351,393,273.46/318,963.14
  6. Step 6: Final answer
    x = 242,508.88

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1.5x scale

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.