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Finding the Fourth Proportional to 272,356.30, 408,534.45 and 132,388.30

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Solution

The fourth proportional to 272,356.30, 408,534.45 and 132,388.30 is: 198,582.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,356.30 : 408,534.45 = 132,388.30 : x
  2. Step 2: Convert to fraction form
    272,356.30/408,534.45 = 132,388.30/x
  3. Step 3: Cross multiply
    272,356.30x = 408,534.45 × 132,388.30
  4. Step 4: Simplify right side
    272,356.30x = 54,085,181,326.94
  5. Step 5: Solve for x
    x = 54,085,181,326.94/272,356.30
  6. Step 6: Final answer
    x = 198,582.45

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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.