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Finding the Fourth Proportional to 348.08, 479.84 and 270.32

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Solution

The fourth proportional to 348.08, 479.84 and 270.32 is: 372.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.08 : 479.84 = 270.32 : x
  2. Step 2: Convert to fraction form
    348.08/479.84 = 270.32/x
  3. Step 3: Cross multiply
    348.08x = 479.84 × 270.32
  4. Step 4: Simplify right side
    348.08x = 129,710.35
  5. Step 5: Solve for x
    x = 129,710.35/348.08
  6. Step 6: Final answer
    x = 372.65

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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.