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Finding the Fourth Proportional to 347,426.72, 479,459.76 and 196,514

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Solution

The fourth proportional to 347,426.72, 479,459.76 and 196,514 is: 271,195.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,426.72 : 479,459.76 = 196,514 : x
  2. Step 2: Convert to fraction form
    347,426.72/479,459.76 = 196,514/x
  3. Step 3: Cross multiply
    347,426.72x = 479,459.76 × 196,514
  4. Step 4: Simplify right side
    347,426.72x = 94,220,555,276.64
  5. Step 5: Solve for x
    x = 94,220,555,276.64/347,426.72
  6. Step 6: Final answer
    x = 271,195.48

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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.