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Finding the Fourth Proportional to 478.28, 716.34 and 467.48

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Solution

The fourth proportional to 478.28, 716.34 and 467.48 is: 700.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    478.28 : 716.34 = 467.48 : x
  2. Step 2: Convert to fraction form
    478.28/716.34 = 467.48/x
  3. Step 3: Cross multiply
    478.28x = 716.34 × 467.48
  4. Step 4: Simplify right side
    478.28x = 334,874.62
  5. Step 5: Solve for x
    x = 334,874.62/478.28
  6. Step 6: Final answer
    x = 700.16

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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.