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Finding the Fourth Proportional to 372.01, 513.56 and 342.37

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Solution

The fourth proportional to 372.01, 513.56 and 342.37 is: 472.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.01 : 513.56 = 342.37 : x
  2. Step 2: Convert to fraction form
    372.01/513.56 = 342.37/x
  3. Step 3: Cross multiply
    372.01x = 513.56 × 342.37
  4. Step 4: Simplify right side
    372.01x = 175,823.26
  5. Step 5: Solve for x
    x = 175,823.26/372.01
  6. Step 6: Final answer
    x = 472.64

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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.