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Finding the Fourth Proportional to 373.95, 515.45 and 269.15

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Solution

The fourth proportional to 373.95, 515.45 and 269.15 is: 370.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.95 : 515.45 = 269.15 : x
  2. Step 2: Convert to fraction form
    373.95/515.45 = 269.15/x
  3. Step 3: Cross multiply
    373.95x = 515.45 × 269.15
  4. Step 4: Simplify right side
    373.95x = 138,731.46
  5. Step 5: Solve for x
    x = 138,731.46/373.95
  6. Step 6: Final answer
    x = 370.99

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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.