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Finding the Fourth Proportional to 373.52, 515.20 and 233.68

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Solution

The fourth proportional to 373.52, 515.20 and 233.68 is: 322.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.52 : 515.20 = 233.68 : x
  2. Step 2: Convert to fraction form
    373.52/515.20 = 233.68/x
  3. Step 3: Cross multiply
    373.52x = 515.20 × 233.68
  4. Step 4: Simplify right side
    373.52x = 120,391.94
  5. Step 5: Solve for x
    x = 120,391.94/373.52
  6. Step 6: Final answer
    x = 322.32

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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.