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Finding the Fourth Proportional to 534.72, 738.06 and 348.22

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Solution

The fourth proportional to 534.72, 738.06 and 348.22 is: 480.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.72 : 738.06 = 348.22 : x
  2. Step 2: Convert to fraction form
    534.72/738.06 = 348.22/x
  3. Step 3: Cross multiply
    534.72x = 738.06 × 348.22
  4. Step 4: Simplify right side
    534.72x = 257,007.25
  5. Step 5: Solve for x
    x = 257,007.25/534.72
  6. Step 6: Final answer
    x = 480.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.