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Finding the Fourth Proportional to 418,488.77, 576,972.44 and 271,051.31

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Solution

The fourth proportional to 418,488.77, 576,972.44 and 271,051.31 is: 373,699.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,488.77 : 576,972.44 = 271,051.31 : x
  2. Step 2: Convert to fraction form
    418,488.77/576,972.44 = 271,051.31/x
  3. Step 3: Cross multiply
    418,488.77x = 576,972.44 × 271,051.31
  4. Step 4: Simplify right side
    418,488.77x = 156,389,135,695.90
  5. Step 5: Solve for x
    x = 156,389,135,695.90/418,488.77
  6. Step 6: Final answer
    x = 373,699.72

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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.