Home / 251,923.50-347,641.56-138,724.38

Finding the Fourth Proportional to 251,923.50, 347,641.56 and 138,724.38

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Solution

The fourth proportional to 251,923.50, 347,641.56 and 138,724.38 is: 191,432.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,923.50 : 347,641.56 = 138,724.38 : x
  2. Step 2: Convert to fraction form
    251,923.50/347,641.56 = 138,724.38/x
  3. Step 3: Cross multiply
    251,923.50x = 347,641.56 × 138,724.38
  4. Step 4: Simplify right side
    251,923.50x = 48,226,359,873.23
  5. Step 5: Solve for x
    x = 48,226,359,873.23/251,923.50
  6. Step 6: Final answer
    x = 191,432.56

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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.