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Finding the Fourth Proportional to 424,185.52, 636,278.28 and 171,577.84

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Solution

The fourth proportional to 424,185.52, 636,278.28 and 171,577.84 is: 257,366.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,185.52 : 636,278.28 = 171,577.84 : x
  2. Step 2: Convert to fraction form
    424,185.52/636,278.28 = 171,577.84/x
  3. Step 3: Cross multiply
    424,185.52x = 636,278.28 × 171,577.84
  4. Step 4: Simplify right side
    424,185.52x = 109,171,252,921.32
  5. Step 5: Solve for x
    x = 109,171,252,921.32/424,185.52
  6. Step 6: Final answer
    x = 257,366.76

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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.