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Finding the Fourth Proportional to 371.64, 559.41 and 315.96

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Solution

The fourth proportional to 371.64, 559.41 and 315.96 is: 475.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.64 : 559.41 = 315.96 : x
  2. Step 2: Convert to fraction form
    371.64/559.41 = 315.96/x
  3. Step 3: Cross multiply
    371.64x = 559.41 × 315.96
  4. Step 4: Simplify right side
    371.64x = 176,751.18
  5. Step 5: Solve for x
    x = 176,751.18/371.64
  6. Step 6: Final answer
    x = 475.60

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.