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Finding the Fourth Proportional to 373.58, 560.45 and 219.64

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Solution

The fourth proportional to 373.58, 560.45 and 219.64 is: 329.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.58 : 560.45 = 219.64 : x
  2. Step 2: Convert to fraction form
    373.58/560.45 = 219.64/x
  3. Step 3: Cross multiply
    373.58x = 560.45 × 219.64
  4. Step 4: Simplify right side
    373.58x = 123,097.24
  5. Step 5: Solve for x
    x = 123,097.24/373.58
  6. Step 6: Final answer
    x = 329.51

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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.