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Finding the Fourth Proportional to 205,324.40, 308,159.40 and 100,233.20

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Solution

The fourth proportional to 205,324.40, 308,159.40 and 100,233.20 is: 150,434.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,324.40 : 308,159.40 = 100,233.20 : x
  2. Step 2: Convert to fraction form
    205,324.40/308,159.40 = 100,233.20/x
  3. Step 3: Cross multiply
    205,324.40x = 308,159.40 × 100,233.20
  4. Step 4: Simplify right side
    205,324.40x = 30,887,802,772.08
  5. Step 5: Solve for x
    x = 30,887,802,772.08/205,324.40
  6. Step 6: Final answer
    x = 150,434.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.