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Finding the Fourth Proportional to 508.92, 701.49 and 343.08

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Solution

The fourth proportional to 508.92, 701.49 and 343.08 is: 472.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.92 : 701.49 = 343.08 : x
  2. Step 2: Convert to fraction form
    508.92/701.49 = 343.08/x
  3. Step 3: Cross multiply
    508.92x = 701.49 × 343.08
  4. Step 4: Simplify right side
    508.92x = 240,667.19
  5. Step 5: Solve for x
    x = 240,667.19/508.92
  6. Step 6: Final answer
    x = 472.90

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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.