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Finding the Fourth Proportional to 437.10, 656.13 and 254.70

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Solution

The fourth proportional to 437.10, 656.13 and 254.70 is: 382.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.10 : 656.13 = 254.70 : x
  2. Step 2: Convert to fraction form
    437.10/656.13 = 254.70/x
  3. Step 3: Cross multiply
    437.10x = 656.13 × 254.70
  4. Step 4: Simplify right side
    437.10x = 167,116.31
  5. Step 5: Solve for x
    x = 167,116.31/437.10
  6. Step 6: Final answer
    x = 382.33

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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.