Home / 251,789.88-347,468.22-138,610.20

Finding the Fourth Proportional to 251,789.88, 347,468.22 and 138,610.20

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Solution

The fourth proportional to 251,789.88, 347,468.22 and 138,610.20 is: 191,281.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,789.88 : 347,468.22 = 138,610.20 : x
  2. Step 2: Convert to fraction form
    251,789.88/347,468.22 = 138,610.20/x
  3. Step 3: Cross multiply
    251,789.88x = 347,468.22 × 138,610.20
  4. Step 4: Simplify right side
    251,789.88x = 48,162,639,467.84
  5. Step 5: Solve for x
    x = 48,162,639,467.84/251,789.88
  6. Step 6: Final answer
    x = 191,281.08

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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.