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Finding the Fourth Proportional to 294.12, 441.14 and 88.71

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Solution

The fourth proportional to 294.12, 441.14 and 88.71 is: 133.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.12 : 441.14 = 88.71 : x
  2. Step 2: Convert to fraction form
    294.12/441.14 = 88.71/x
  3. Step 3: Cross multiply
    294.12x = 441.14 × 88.71
  4. Step 4: Simplify right side
    294.12x = 39,133.09
  5. Step 5: Solve for x
    x = 39,133.09/294.12
  6. Step 6: Final answer
    x = 133.05

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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.