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Finding the Fourth Proportional to 317.26, 437.80 and 177.37

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Solution

The fourth proportional to 317.26, 437.80 and 177.37 is: 244.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    317.26 : 437.80 = 177.37 : x
  2. Step 2: Convert to fraction form
    317.26/437.80 = 177.37/x
  3. Step 3: Cross multiply
    317.26x = 437.80 × 177.37
  4. Step 4: Simplify right side
    317.26x = 77,652.59
  5. Step 5: Solve for x
    x = 77,652.59/317.26
  6. Step 6: Final answer
    x = 244.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.