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Finding the Fourth Proportional to 229,808.88, 343,991.88 and 145,277.28

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Solution

The fourth proportional to 229,808.88, 343,991.88 and 145,277.28 is: 217,459.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,808.88 : 343,991.88 = 145,277.28 : x
  2. Step 2: Convert to fraction form
    229,808.88/343,991.88 = 145,277.28/x
  3. Step 3: Cross multiply
    229,808.88x = 343,991.88 × 145,277.28
  4. Step 4: Simplify right side
    229,808.88x = 49,974,204,668.49
  5. Step 5: Solve for x
    x = 49,974,204,668.49/229,808.88
  6. Step 6: Final answer
    x = 217,459.85

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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.