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Finding the Fourth Proportional to 234,421.85, 323,502.31 and 126,992.31

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Solution

The fourth proportional to 234,421.85, 323,502.31 and 126,992.31 is: 175,249.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,421.85 : 323,502.31 = 126,992.31 : x
  2. Step 2: Convert to fraction form
    234,421.85/323,502.31 = 126,992.31/x
  3. Step 3: Cross multiply
    234,421.85x = 323,502.31 × 126,992.31
  4. Step 4: Simplify right side
    234,421.85x = 41,082,305,319.76
  5. Step 5: Solve for x
    x = 41,082,305,319.76/234,421.85
  6. Step 6: Final answer
    x = 175,249.47

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1.5x scale

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.