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Finding the Fourth Proportional to 397, 591.53 and 372.16

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Solution

The fourth proportional to 397, 591.53 and 372.16 is: 554.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    397 : 591.53 = 372.16 : x
  2. Step 2: Convert to fraction form
    397/591.53 = 372.16/x
  3. Step 3: Cross multiply
    397x = 591.53 × 372.16
  4. Step 4: Simplify right side
    397x = 220,143.80
  5. Step 5: Solve for x
    x = 220,143.80/397
  6. Step 6: Final answer
    x = 554.52

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.