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Finding the Fourth Proportional to 442,536.05, 610,796.46 and 281,359.61

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Solution

The fourth proportional to 442,536.05, 610,796.46 and 281,359.61 is: 388,337.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,536.05 : 610,796.46 = 281,359.61 : x
  2. Step 2: Convert to fraction form
    442,536.05/610,796.46 = 281,359.61/x
  3. Step 3: Cross multiply
    442,536.05x = 610,796.46 × 281,359.61
  4. Step 4: Simplify right side
    442,536.05x = 171,853,455,301.97
  5. Step 5: Solve for x
    x = 171,853,455,301.97/442,536.05
  6. Step 6: Final answer
    x = 388,337.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.