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Finding the Fourth Proportional to 181,447.16, 250,382.89 and 100,869.78

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Solution

The fourth proportional to 181,447.16, 250,382.89 and 100,869.78 is: 139,192.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,447.16 : 250,382.89 = 100,869.78 : x
  2. Step 2: Convert to fraction form
    181,447.16/250,382.89 = 100,869.78/x
  3. Step 3: Cross multiply
    181,447.16x = 250,382.89 × 100,869.78
  4. Step 4: Simplify right side
    181,447.16x = 25,256,065,273.80
  5. Step 5: Solve for x
    x = 25,256,065,273.80/181,447.16
  6. Step 6: Final answer
    x = 139,192.40

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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.