Home / 251,905.10-347,613.29-138,727.85

Finding the Fourth Proportional to 251,905.10, 347,613.29 and 138,727.85

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Solution

The fourth proportional to 251,905.10, 347,613.29 and 138,727.85 is: 191,435.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,905.10 : 347,613.29 = 138,727.85 : x
  2. Step 2: Convert to fraction form
    251,905.10/347,613.29 = 138,727.85/x
  3. Step 3: Cross multiply
    251,905.10x = 347,613.29 × 138,727.85
  4. Step 4: Simplify right side
    251,905.10x = 48,223,641,921.42
  5. Step 5: Solve for x
    x = 48,223,641,921.42/251,905.10
  6. Step 6: Final answer
    x = 191,435.75

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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.