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Finding the Fourth Proportional to 308,005.38, 462,192.38 and 132,901.38

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Solution

The fourth proportional to 308,005.38, 462,192.38 and 132,901.38 is: 199,431.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,005.38 : 462,192.38 = 132,901.38 : x
  2. Step 2: Convert to fraction form
    308,005.38/462,192.38 = 132,901.38/x
  3. Step 3: Cross multiply
    308,005.38x = 462,192.38 × 132,901.38
  4. Step 4: Simplify right side
    308,005.38x = 61,426,005,127.48
  5. Step 5: Solve for x
    x = 61,426,005,127.48/308,005.38
  6. Step 6: Final answer
    x = 199,431.60

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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.