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Finding the Fourth Proportional to 370.80, 551.88 and 367.20

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Solution

The fourth proportional to 370.80, 551.88 and 367.20 is: 546.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.80 : 551.88 = 367.20 : x
  2. Step 2: Convert to fraction form
    370.80/551.88 = 367.20/x
  3. Step 3: Cross multiply
    370.80x = 551.88 × 367.20
  4. Step 4: Simplify right side
    370.80x = 202,650.34
  5. Step 5: Solve for x
    x = 202,650.34/370.80
  6. Step 6: Final answer
    x = 546.52

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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.