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Finding the Fourth Proportional to 229,322.19, 344,042.70 and 87,169.89

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Solution

The fourth proportional to 229,322.19, 344,042.70 and 87,169.89 is: 130,777.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,322.19 : 344,042.70 = 87,169.89 : x
  2. Step 2: Convert to fraction form
    229,322.19/344,042.70 = 87,169.89/x
  3. Step 3: Cross multiply
    229,322.19x = 344,042.70 × 87,169.89
  4. Step 4: Simplify right side
    229,322.19x = 29,990,164,314.30
  5. Step 5: Solve for x
    x = 29,990,164,314.30/229,322.19
  6. Step 6: Final answer
    x = 130,777.42

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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.