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Finding the Fourth Proportional to 468.74, 703.12 and 276.24

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Solution

The fourth proportional to 468.74, 703.12 and 276.24 is: 414.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.74 : 703.12 = 276.24 : x
  2. Step 2: Convert to fraction form
    468.74/703.12 = 276.24/x
  3. Step 3: Cross multiply
    468.74x = 703.12 × 276.24
  4. Step 4: Simplify right side
    468.74x = 194,229.87
  5. Step 5: Solve for x
    x = 194,229.87/468.74
  6. Step 6: Final answer
    x = 414.37

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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.