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Finding the Fourth Proportional to 547.12, 816.66 and 483.04

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Solution

The fourth proportional to 547.12, 816.66 and 483.04 is: 721.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.12 : 816.66 = 483.04 : x
  2. Step 2: Convert to fraction form
    547.12/816.66 = 483.04/x
  3. Step 3: Cross multiply
    547.12x = 816.66 × 483.04
  4. Step 4: Simplify right side
    547.12x = 394,479.45
  5. Step 5: Solve for x
    x = 394,479.45/547.12
  6. Step 6: Final answer
    x = 721.01

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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.