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Finding the Fourth Proportional to 833.55, 1,250.61 and 371.66

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Solution

The fourth proportional to 833.55, 1,250.61 and 371.66 is: 557.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    833.55 : 1,250.61 = 371.66 : x
  2. Step 2: Convert to fraction form
    833.55/1,250.61 = 371.66/x
  3. Step 3: Cross multiply
    833.55x = 1,250.61 × 371.66
  4. Step 4: Simplify right side
    833.55x = 464,795.46
  5. Step 5: Solve for x
    x = 464,795.46/833.55
  6. Step 6: Final answer
    x = 557.61

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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.