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Finding the Fourth Proportional to 229,885.45, 344,986.74 and 80,126.98

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Solution

The fourth proportional to 229,885.45, 344,986.74 and 80,126.98 is: 120,245.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,885.45 : 344,986.74 = 80,126.98 : x
  2. Step 2: Convert to fraction form
    229,885.45/344,986.74 = 80,126.98/x
  3. Step 3: Cross multiply
    229,885.45x = 344,986.74 × 80,126.98
  4. Step 4: Simplify right side
    229,885.45x = 27,642,744,753.78
  5. Step 5: Solve for x
    x = 27,642,744,753.78/229,885.45
  6. Step 6: Final answer
    x = 120,245.74

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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.