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Finding the Fourth Proportional to 251,151.84, 376,359.12 and 126,321.12

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Solution

The fourth proportional to 251,151.84, 376,359.12 and 126,321.12 is: 189,296.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,151.84 : 376,359.12 = 126,321.12 : x
  2. Step 2: Convert to fraction form
    251,151.84/376,359.12 = 126,321.12/x
  3. Step 3: Cross multiply
    251,151.84x = 376,359.12 × 126,321.12
  4. Step 4: Simplify right side
    251,151.84x = 47,542,105,560.61
  5. Step 5: Solve for x
    x = 47,542,105,560.61/251,151.84
  6. Step 6: Final answer
    x = 189,296.27

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1.5x scale

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.