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Finding the Fourth Proportional to 317.01, 475.37 and 100.47

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Solution

The fourth proportional to 317.01, 475.37 and 100.47 is: 150.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    317.01 : 475.37 = 100.47 : x
  2. Step 2: Convert to fraction form
    317.01/475.37 = 100.47/x
  3. Step 3: Cross multiply
    317.01x = 475.37 × 100.47
  4. Step 4: Simplify right side
    317.01x = 47,759.92
  5. Step 5: Solve for x
    x = 47,759.92/317.01
  6. Step 6: Final answer
    x = 150.66

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.