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Finding the Fourth Proportional to 605,043.52, 907,565.28 and 161,800

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Solution

The fourth proportional to 605,043.52, 907,565.28 and 161,800 is: 242,700

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,043.52 : 907,565.28 = 161,800 : x
  2. Step 2: Convert to fraction form
    605,043.52/907,565.28 = 161,800/x
  3. Step 3: Cross multiply
    605,043.52x = 907,565.28 × 161,800
  4. Step 4: Simplify right side
    605,043.52x = 146,844,062,304
  5. Step 5: Solve for x
    x = 146,844,062,304/605,043.52
  6. Step 6: Final answer
    x = 242,700

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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.