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Finding the Fourth Proportional to 318,287, 439,247.10 and 175,057.88

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Solution

The fourth proportional to 318,287, 439,247.10 and 175,057.88 is: 241,585.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,287 : 439,247.10 = 175,057.88 : x
  2. Step 2: Convert to fraction form
    318,287/439,247.10 = 175,057.88/x
  3. Step 3: Cross multiply
    318,287x = 439,247.10 × 175,057.88
  4. Step 4: Simplify right side
    318,287x = 76,893,666,122.15
  5. Step 5: Solve for x
    x = 76,893,666,122.15/318,287
  6. Step 6: Final answer
    x = 241,585.95

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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.