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Finding the Fourth Proportional to 442,369.82, 610,278.18 and 281,138.42

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Solution

The fourth proportional to 442,369.82, 610,278.18 and 281,138.42 is: 387,848.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,369.82 : 610,278.18 = 281,138.42 : x
  2. Step 2: Convert to fraction form
    442,369.82/610,278.18 = 281,138.42/x
  3. Step 3: Cross multiply
    442,369.82x = 610,278.18 × 281,138.42
  4. Step 4: Simplify right side
    442,369.82x = 171,572,643,285.68
  5. Step 5: Solve for x
    x = 171,572,643,285.68/442,369.82
  6. Step 6: Final answer
    x = 387,848.89

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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.