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Finding the Fourth Proportional to 547.32, 817.35 and 481.08

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Solution

The fourth proportional to 547.32, 817.35 and 481.08 is: 718.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.32 : 817.35 = 481.08 : x
  2. Step 2: Convert to fraction form
    547.32/817.35 = 481.08/x
  3. Step 3: Cross multiply
    547.32x = 817.35 × 481.08
  4. Step 4: Simplify right side
    547.32x = 393,210.74
  5. Step 5: Solve for x
    x = 393,210.74/547.32
  6. Step 6: Final answer
    x = 718.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.