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Finding the Fourth Proportional to 372.79, 514.26 and 233.07

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Solution

The fourth proportional to 372.79, 514.26 and 233.07 is: 321.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.79 : 514.26 = 233.07 : x
  2. Step 2: Convert to fraction form
    372.79/514.26 = 233.07/x
  3. Step 3: Cross multiply
    372.79x = 514.26 × 233.07
  4. Step 4: Simplify right side
    372.79x = 119,858.58
  5. Step 5: Solve for x
    x = 119,858.58/372.79
  6. Step 6: Final answer
    x = 321.52

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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.