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Finding the Fourth Proportional to 373.72, 515.63 and 233.86

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Solution

The fourth proportional to 373.72, 515.63 and 233.86 is: 322.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.72 : 515.63 = 233.86 : x
  2. Step 2: Convert to fraction form
    373.72/515.63 = 233.86/x
  3. Step 3: Cross multiply
    373.72x = 515.63 × 233.86
  4. Step 4: Simplify right side
    373.72x = 120,585.23
  5. Step 5: Solve for x
    x = 120,585.23/373.72
  6. Step 6: Final answer
    x = 322.66

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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.