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Finding the Fourth Proportional to 151,800, 227,700 and 40,992

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Solution

The fourth proportional to 151,800, 227,700 and 40,992 is: 61,488

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,800 : 227,700 = 40,992 : x
  2. Step 2: Convert to fraction form
    151,800/227,700 = 40,992/x
  3. Step 3: Cross multiply
    151,800x = 227,700 × 40,992
  4. Step 4: Simplify right side
    151,800x = 9,333,878,400
  5. Step 5: Solve for x
    x = 9,333,878,400/151,800
  6. Step 6: Final answer
    x = 61,488

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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.