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Finding the Fourth Proportional to 480.82, 720.52 and 370.72

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Solution

The fourth proportional to 480.82, 720.52 and 370.72 is: 555.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.82 : 720.52 = 370.72 : x
  2. Step 2: Convert to fraction form
    480.82/720.52 = 370.72/x
  3. Step 3: Cross multiply
    480.82x = 720.52 × 370.72
  4. Step 4: Simplify right side
    480.82x = 267,111.17
  5. Step 5: Solve for x
    x = 267,111.17/480.82
  6. Step 6: Final answer
    x = 555.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.