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Finding the Fourth Proportional to 257,459.38, 386,094.26 and 88,936.45

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Solution

The fourth proportional to 257,459.38, 386,094.26 and 88,936.45 is: 133,371.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,459.38 : 386,094.26 = 88,936.45 : x
  2. Step 2: Convert to fraction form
    257,459.38/386,094.26 = 88,936.45/x
  3. Step 3: Cross multiply
    257,459.38x = 386,094.26 × 88,936.45
  4. Step 4: Simplify right side
    257,459.38x = 34,337,852,106.88
  5. Step 5: Solve for x
    x = 34,337,852,106.88/257,459.38
  6. Step 6: Final answer
    x = 133,371.92

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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.