Home / 251,616.38-347,230.60-138,439.13

Finding the Fourth Proportional to 251,616.38, 347,230.60 and 138,439.13

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Solution

The fourth proportional to 251,616.38, 347,230.60 and 138,439.13 is: 191,045.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,616.38 : 347,230.60 = 138,439.13 : x
  2. Step 2: Convert to fraction form
    251,616.38/347,230.60 = 138,439.13/x
  3. Step 3: Cross multiply
    251,616.38x = 347,230.60 × 138,439.13
  4. Step 4: Simplify right side
    251,616.38x = 48,070,300,091.13
  5. Step 5: Solve for x
    x = 48,070,300,091.13/251,616.38
  6. Step 6: Final answer
    x = 191,045.99

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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.