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Finding the Fourth Proportional to 373.64, 560.68 and 191.20

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Solution

The fourth proportional to 373.64, 560.68 and 191.20 is: 286.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.64 : 560.68 = 191.20 : x
  2. Step 2: Convert to fraction form
    373.64/560.68 = 191.20/x
  3. Step 3: Cross multiply
    373.64x = 560.68 × 191.20
  4. Step 4: Simplify right side
    373.64x = 107,202.02
  5. Step 5: Solve for x
    x = 107,202.02/373.64
  6. Step 6: Final answer
    x = 286.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.