Home / 251,618.38-347,233.36-138,441.12

Finding the Fourth Proportional to 251,618.38, 347,233.36 and 138,441.12

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Solution

The fourth proportional to 251,618.38, 347,233.36 and 138,441.12 is: 191,048.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,618.38 : 347,233.36 = 138,441.12 : x
  2. Step 2: Convert to fraction form
    251,618.38/347,233.36 = 138,441.12/x
  3. Step 3: Cross multiply
    251,618.38x = 347,233.36 × 138,441.12
  4. Step 4: Simplify right side
    251,618.38x = 48,071,375,259.76
  5. Step 5: Solve for x
    x = 48,071,375,259.76/251,618.38
  6. Step 6: Final answer
    x = 191,048.74

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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.