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Finding the Fourth Proportional to 308,005.75, 462,192.95 and 132,901.75

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Solution

The fourth proportional to 308,005.75, 462,192.95 and 132,901.75 is: 199,432.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,005.75 : 462,192.95 = 132,901.75 : x
  2. Step 2: Convert to fraction form
    308,005.75/462,192.95 = 132,901.75/x
  3. Step 3: Cross multiply
    308,005.75x = 462,192.95 × 132,901.75
  4. Step 4: Simplify right side
    308,005.75x = 61,426,251,892.66
  5. Step 5: Solve for x
    x = 61,426,251,892.66/308,005.75
  6. Step 6: Final answer
    x = 199,432.16

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1.5x scale

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.