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Finding the Fourth Proportional to 181,354.92, 250,270.07 and 100,780.38

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Solution

The fourth proportional to 181,354.92, 250,270.07 and 100,780.38 is: 139,077.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,354.92 : 250,270.07 = 100,780.38 : x
  2. Step 2: Convert to fraction form
    181,354.92/250,270.07 = 100,780.38/x
  3. Step 3: Cross multiply
    181,354.92x = 250,270.07 × 100,780.38
  4. Step 4: Simplify right side
    181,354.92x = 25,222,312,757.23
  5. Step 5: Solve for x
    x = 25,222,312,757.23/181,354.92
  6. Step 6: Final answer
    x = 139,077.08

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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.