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Finding the Fourth Proportional to 257,377.77, 385,935.03 and 107,577.18

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Solution

The fourth proportional to 257,377.77, 385,935.03 and 107,577.18 is: 161,310.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,377.77 : 385,935.03 = 107,577.18 : x
  2. Step 2: Convert to fraction form
    257,377.77/385,935.03 = 107,577.18/x
  3. Step 3: Cross multiply
    257,377.77x = 385,935.03 × 107,577.18
  4. Step 4: Simplify right side
    257,377.77x = 41,517,802,190.62
  5. Step 5: Solve for x
    x = 41,517,802,190.62/257,377.77
  6. Step 6: Final answer
    x = 161,310.75

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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.