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Finding the Fourth Proportional to 246,328.62, 339,932.94 and 138,897.88

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Solution

The fourth proportional to 246,328.62, 339,932.94 and 138,897.88 is: 191,678.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,328.62 : 339,932.94 = 138,897.88 : x
  2. Step 2: Convert to fraction form
    246,328.62/339,932.94 = 138,897.88/x
  3. Step 3: Cross multiply
    246,328.62x = 339,932.94 × 138,897.88
  4. Step 4: Simplify right side
    246,328.62x = 47,215,964,708.17
  5. Step 5: Solve for x
    x = 47,215,964,708.17/246,328.62
  6. Step 6: Final answer
    x = 191,678.76

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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.