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Finding the Fourth Proportional to 756.07, 1,134.23 and 235.95

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Solution

The fourth proportional to 756.07, 1,134.23 and 235.95 is: 353.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    756.07 : 1,134.23 = 235.95 : x
  2. Step 2: Convert to fraction form
    756.07/1,134.23 = 235.95/x
  3. Step 3: Cross multiply
    756.07x = 1,134.23 × 235.95
  4. Step 4: Simplify right side
    756.07x = 267,621.57
  5. Step 5: Solve for x
    x = 267,621.57/756.07
  6. Step 6: Final answer
    x = 353.96

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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.