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Finding the Fourth Proportional to 181,438.59, 250,393.80 and 100,867.46

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Solution

The fourth proportional to 181,438.59, 250,393.80 and 100,867.46 is: 139,201.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,438.59 : 250,393.80 = 100,867.46 : x
  2. Step 2: Convert to fraction form
    181,438.59/250,393.80 = 100,867.46/x
  3. Step 3: Cross multiply
    181,438.59x = 250,393.80 × 100,867.46
  4. Step 4: Simplify right side
    181,438.59x = 25,256,586,605.75
  5. Step 5: Solve for x
    x = 25,256,586,605.75/181,438.59
  6. Step 6: Final answer
    x = 139,201.85

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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.