Home / 251,439.12-347,149.80-156,085.92

Finding the Fourth Proportional to 251,439.12, 347,149.80 and 156,085.92

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Solution

The fourth proportional to 251,439.12, 347,149.80 and 156,085.92 is: 215,500.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,439.12 : 347,149.80 = 156,085.92 : x
  2. Step 2: Convert to fraction form
    251,439.12/347,149.80 = 156,085.92/x
  3. Step 3: Cross multiply
    251,439.12x = 347,149.80 × 156,085.92
  4. Step 4: Simplify right side
    251,439.12x = 54,185,195,910.82
  5. Step 5: Solve for x
    x = 54,185,195,910.82/251,439.12
  6. Step 6: Final answer
    x = 215,500.26

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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.