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Finding the Fourth Proportional to 181,430.26, 250,354.72 and 100,844.78

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Solution

The fourth proportional to 181,430.26, 250,354.72 and 100,844.78 is: 139,155.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,430.26 : 250,354.72 = 100,844.78 : x
  2. Step 2: Convert to fraction form
    181,430.26/250,354.72 = 100,844.78/x
  3. Step 3: Cross multiply
    181,430.26x = 250,354.72 × 100,844.78
  4. Step 4: Simplify right side
    181,430.26x = 25,246,966,660.36
  5. Step 5: Solve for x
    x = 25,246,966,660.36/181,430.26
  6. Step 6: Final answer
    x = 139,155.21

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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.