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Finding the Fourth Proportional to 222.88, 332.36 and 187.04

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Solution

The fourth proportional to 222.88, 332.36 and 187.04 is: 278.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.88 : 332.36 = 187.04 : x
  2. Step 2: Convert to fraction form
    222.88/332.36 = 187.04/x
  3. Step 3: Cross multiply
    222.88x = 332.36 × 187.04
  4. Step 4: Simplify right side
    222.88x = 62,164.61
  5. Step 5: Solve for x
    x = 62,164.61/222.88
  6. Step 6: Final answer
    x = 278.92

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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.