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Finding the Fourth Proportional to 472.75, 652.27 and 276.23

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Solution

The fourth proportional to 472.75, 652.27 and 276.23 is: 381.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.75 : 652.27 = 276.23 : x
  2. Step 2: Convert to fraction form
    472.75/652.27 = 276.23/x
  3. Step 3: Cross multiply
    472.75x = 652.27 × 276.23
  4. Step 4: Simplify right side
    472.75x = 180,176.54
  5. Step 5: Solve for x
    x = 180,176.54/472.75
  6. Step 6: Final answer
    x = 381.12

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Find fourth proportional to 236.38, 326.14 and 138.12
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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.