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Finding the Fourth Proportional to 226,892.88, 340,313.40 and 86,648.40

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Solution

The fourth proportional to 226,892.88, 340,313.40 and 86,648.40 is: 129,962.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,892.88 : 340,313.40 = 86,648.40 : x
  2. Step 2: Convert to fraction form
    226,892.88/340,313.40 = 86,648.40/x
  3. Step 3: Cross multiply
    226,892.88x = 340,313.40 × 86,648.40
  4. Step 4: Simplify right side
    226,892.88x = 29,487,611,608.56
  5. Step 5: Solve for x
    x = 29,487,611,608.56/226,892.88
  6. Step 6: Final answer
    x = 129,962.70

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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.