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Finding the Fourth Proportional to 373.44, 557.10 and 338.61

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Solution

The fourth proportional to 373.44, 557.10 and 338.61 is: 505.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.44 : 557.10 = 338.61 : x
  2. Step 2: Convert to fraction form
    373.44/557.10 = 338.61/x
  3. Step 3: Cross multiply
    373.44x = 557.10 × 338.61
  4. Step 4: Simplify right side
    373.44x = 188,639.63
  5. Step 5: Solve for x
    x = 188,639.63/373.44
  6. Step 6: Final answer
    x = 505.14

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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.