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Finding the Fourth Proportional to 370.49, 551.52 and 352.80

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Solution

The fourth proportional to 370.49, 551.52 and 352.80 is: 525.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.49 : 551.52 = 352.80 : x
  2. Step 2: Convert to fraction form
    370.49/551.52 = 352.80/x
  3. Step 3: Cross multiply
    370.49x = 551.52 × 352.80
  4. Step 4: Simplify right side
    370.49x = 194,576.26
  5. Step 5: Solve for x
    x = 194,576.26/370.49
  6. Step 6: Final answer
    x = 525.19

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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.