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Finding the Fourth Proportional to 373.57, 515.48 and 216.17

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Solution

The fourth proportional to 373.57, 515.48 and 216.17 is: 298.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.57 : 515.48 = 216.17 : x
  2. Step 2: Convert to fraction form
    373.57/515.48 = 216.17/x
  3. Step 3: Cross multiply
    373.57x = 515.48 × 216.17
  4. Step 4: Simplify right side
    373.57x = 111,431.52
  5. Step 5: Solve for x
    x = 111,431.52/373.57
  6. Step 6: Final answer
    x = 298.29

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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.