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Finding the Fourth Proportional to 374.67, 558.54 and 353.97

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Solution

The fourth proportional to 374.67, 558.54 and 353.97 is: 527.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.67 : 558.54 = 353.97 : x
  2. Step 2: Convert to fraction form
    374.67/558.54 = 353.97/x
  3. Step 3: Cross multiply
    374.67x = 558.54 × 353.97
  4. Step 4: Simplify right side
    374.67x = 197,706.40
  5. Step 5: Solve for x
    x = 197,706.40/374.67
  6. Step 6: Final answer
    x = 527.68

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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.