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Finding the Fourth Proportional to 317.01, 437.46 and 177.12

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Solution

The fourth proportional to 317.01, 437.46 and 177.12 is: 244.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    317.01 : 437.46 = 177.12 : x
  2. Step 2: Convert to fraction form
    317.01/437.46 = 177.12/x
  3. Step 3: Cross multiply
    317.01x = 437.46 × 177.12
  4. Step 4: Simplify right side
    317.01x = 77,482.03
  5. Step 5: Solve for x
    x = 77,482.03/317.01
  6. Step 6: Final answer
    x = 244.42

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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.