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Finding the Fourth Proportional to 347.33, 479.07 and 199.91

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Solution

The fourth proportional to 347.33, 479.07 and 199.91 is: 275.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.33 : 479.07 = 199.91 : x
  2. Step 2: Convert to fraction form
    347.33/479.07 = 199.91/x
  3. Step 3: Cross multiply
    347.33x = 479.07 × 199.91
  4. Step 4: Simplify right side
    347.33x = 95,772.08
  5. Step 5: Solve for x
    x = 95,772.08/347.33
  6. Step 6: Final answer
    x = 275.74

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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.