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Finding the Fourth Proportional to 373.66, 560.32 and 142.43

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Solution

The fourth proportional to 373.66, 560.32 and 142.43 is: 213.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.66 : 560.32 = 142.43 : x
  2. Step 2: Convert to fraction form
    373.66/560.32 = 142.43/x
  3. Step 3: Cross multiply
    373.66x = 560.32 × 142.43
  4. Step 4: Simplify right side
    373.66x = 79,803.22
  5. Step 5: Solve for x
    x = 79,803.22/373.66
  6. Step 6: Final answer
    x = 213.57

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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.