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Finding the Fourth Proportional to 229,270.20, 343,965.04 and 87,118.04

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Solution

The fourth proportional to 229,270.20, 343,965.04 and 87,118.04 is: 130,699.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,270.20 : 343,965.04 = 87,118.04 : x
  2. Step 2: Convert to fraction form
    229,270.20/343,965.04 = 87,118.04/x
  3. Step 3: Cross multiply
    229,270.20x = 343,965.04 × 87,118.04
  4. Step 4: Simplify right side
    229,270.20x = 29,965,560,113.32
  5. Step 5: Solve for x
    x = 29,965,560,113.32/229,270.20
  6. Step 6: Final answer
    x = 130,699.76

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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.