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Finding the Fourth Proportional to 349.08, 521.12 and 297.17

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Solution

The fourth proportional to 349.08, 521.12 and 297.17 is: 443.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.08 : 521.12 = 297.17 : x
  2. Step 2: Convert to fraction form
    349.08/521.12 = 297.17/x
  3. Step 3: Cross multiply
    349.08x = 521.12 × 297.17
  4. Step 4: Simplify right side
    349.08x = 154,857.88
  5. Step 5: Solve for x
    x = 154,857.88/349.08
  6. Step 6: Final answer
    x = 443.62

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.