Home / 251,923.71-347,641.87-138,724.59

Finding the Fourth Proportional to 251,923.71, 347,641.87 and 138,724.59

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Solution

The fourth proportional to 251,923.71, 347,641.87 and 138,724.59 is: 191,432.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,923.71 : 347,641.87 = 138,724.59 : x
  2. Step 2: Convert to fraction form
    251,923.71/347,641.87 = 138,724.59/x
  3. Step 3: Cross multiply
    251,923.71x = 347,641.87 × 138,724.59
  4. Step 4: Simplify right side
    251,923.71x = 48,226,475,882.58
  5. Step 5: Solve for x
    x = 48,226,475,882.58/251,923.71
  6. Step 6: Final answer
    x = 191,432.86

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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.