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Finding the Fourth Proportional to 373.43, 557.69 and 300.42

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Solution

The fourth proportional to 373.43, 557.69 and 300.42 is: 448.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.43 : 557.69 = 300.42 : x
  2. Step 2: Convert to fraction form
    373.43/557.69 = 300.42/x
  3. Step 3: Cross multiply
    373.43x = 557.69 × 300.42
  4. Step 4: Simplify right side
    373.43x = 167,539.73
  5. Step 5: Solve for x
    x = 167,539.73/373.43
  6. Step 6: Final answer
    x = 448.66

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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.