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Finding the Fourth Proportional to 372.01, 561.34 and 357.02

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Solution

The fourth proportional to 372.01, 561.34 and 357.02 is: 538.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.01 : 561.34 = 357.02 : x
  2. Step 2: Convert to fraction form
    372.01/561.34 = 357.02/x
  3. Step 3: Cross multiply
    372.01x = 561.34 × 357.02
  4. Step 4: Simplify right side
    372.01x = 200,409.16
  5. Step 5: Solve for x
    x = 200,409.16/372.01
  6. Step 6: Final answer
    x = 538.73

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Why These Related Problems?

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