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Finding the Fourth Proportional to 254.88, 380.22 and 237.42

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Solution

The fourth proportional to 254.88, 380.22 and 237.42 is: 354.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.88 : 380.22 = 237.42 : x
  2. Step 2: Convert to fraction form
    254.88/380.22 = 237.42/x
  3. Step 3: Cross multiply
    254.88x = 380.22 × 237.42
  4. Step 4: Simplify right side
    254.88x = 90,271.83
  5. Step 5: Solve for x
    x = 90,271.83/254.88
  6. Step 6: Final answer
    x = 354.17

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.