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Finding the Fourth Proportional to 220,323.60, 304,025.67 and 124,830

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Solution

The fourth proportional to 220,323.60, 304,025.67 and 124,830 is: 172,253.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,323.60 : 304,025.67 = 124,830 : x
  2. Step 2: Convert to fraction form
    220,323.60/304,025.67 = 124,830/x
  3. Step 3: Cross multiply
    220,323.60x = 304,025.67 × 124,830
  4. Step 4: Simplify right side
    220,323.60x = 37,951,524,386.10
  5. Step 5: Solve for x
    x = 37,951,524,386.10/220,323.60
  6. Step 6: Final answer
    x = 172,253.56

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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.