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Finding the Fourth Proportional to 372.60, 514.16 and 215.29

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Solution

The fourth proportional to 372.60, 514.16 and 215.29 is: 297.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.60 : 514.16 = 215.29 : x
  2. Step 2: Convert to fraction form
    372.60/514.16 = 215.29/x
  3. Step 3: Cross multiply
    372.60x = 514.16 × 215.29
  4. Step 4: Simplify right side
    372.60x = 110,690.94
  5. Step 5: Solve for x
    x = 110,690.94/372.60
  6. Step 6: Final answer
    x = 297.08

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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.