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Finding the Fourth Proportional to 373.10, 514.73 and 215.72

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Solution

The fourth proportional to 373.10, 514.73 and 215.72 is: 297.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.10 : 514.73 = 215.72 : x
  2. Step 2: Convert to fraction form
    373.10/514.73 = 215.72/x
  3. Step 3: Cross multiply
    373.10x = 514.73 × 215.72
  4. Step 4: Simplify right side
    373.10x = 111,035.52
  5. Step 5: Solve for x
    x = 111,035.52/373.10
  6. Step 6: Final answer
    x = 297.60

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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.