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Finding the Fourth Proportional to 434.26, 650.94 and 271.57

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Solution

The fourth proportional to 434.26, 650.94 and 271.57 is: 407.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    434.26 : 650.94 = 271.57 : x
  2. Step 2: Convert to fraction form
    434.26/650.94 = 271.57/x
  3. Step 3: Cross multiply
    434.26x = 650.94 × 271.57
  4. Step 4: Simplify right side
    434.26x = 176,775.78
  5. Step 5: Solve for x
    x = 176,775.78/434.26
  6. Step 6: Final answer
    x = 407.07

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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.