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Finding the Fourth Proportional to 373.26, 559.93 and 142.23

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Solution

The fourth proportional to 373.26, 559.93 and 142.23 is: 213.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.26 : 559.93 = 142.23 : x
  2. Step 2: Convert to fraction form
    373.26/559.93 = 142.23/x
  3. Step 3: Cross multiply
    373.26x = 559.93 × 142.23
  4. Step 4: Simplify right side
    373.26x = 79,638.84
  5. Step 5: Solve for x
    x = 79,638.84/373.26
  6. Step 6: Final answer
    x = 213.36

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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.