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Finding the Fourth Proportional to 511.90, 767.85 and 483.55

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Solution

The fourth proportional to 511.90, 767.85 and 483.55 is: 725.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    511.90 : 767.85 = 483.55 : x
  2. Step 2: Convert to fraction form
    511.90/767.85 = 483.55/x
  3. Step 3: Cross multiply
    511.90x = 767.85 × 483.55
  4. Step 4: Simplify right side
    511.90x = 371,293.87
  5. Step 5: Solve for x
    x = 371,293.87/511.90
  6. Step 6: Final answer
    x = 725.33

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Similar ratio
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1.5x scale

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.