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Finding the Fourth Proportional to 257,974.98, 386,988.39 and 95,912.34

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Solution

The fourth proportional to 257,974.98, 386,988.39 and 95,912.34 is: 143,878.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,974.98 : 386,988.39 = 95,912.34 : x
  2. Step 2: Convert to fraction form
    257,974.98/386,988.39 = 95,912.34/x
  3. Step 3: Cross multiply
    257,974.98x = 386,988.39 × 95,912.34
  4. Step 4: Simplify right side
    257,974.98x = 37,116,962,037.73
  5. Step 5: Solve for x
    x = 37,116,962,037.73/257,974.98
  6. Step 6: Final answer
    x = 143,878.15

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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.