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Finding the Fourth Proportional to 234,474.20, 323,537.80 and 138,965.48

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Solution

The fourth proportional to 234,474.20, 323,537.80 and 138,965.48 is: 191,750.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,474.20 : 323,537.80 = 138,965.48 : x
  2. Step 2: Convert to fraction form
    234,474.20/323,537.80 = 138,965.48/x
  3. Step 3: Cross multiply
    234,474.20x = 323,537.80 × 138,965.48
  4. Step 4: Simplify right side
    234,474.20x = 44,960,585,675.14
  5. Step 5: Solve for x
    x = 44,960,585,675.14/234,474.20
  6. Step 6: Final answer
    x = 191,750.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.