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Finding the Fourth Proportional to 373.81, 557.19 and 344.65

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Solution

The fourth proportional to 373.81, 557.19 and 344.65 is: 513.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.81 : 557.19 = 344.65 : x
  2. Step 2: Convert to fraction form
    373.81/557.19 = 344.65/x
  3. Step 3: Cross multiply
    373.81x = 557.19 × 344.65
  4. Step 4: Simplify right side
    373.81x = 192,034.67
  5. Step 5: Solve for x
    x = 192,034.67/373.81
  6. Step 6: Final answer
    x = 513.72

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.