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Finding the Fourth Proportional to 511.21, 767.88 and 497.54

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Solution

The fourth proportional to 511.21, 767.88 and 497.54 is: 747.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    511.21 : 767.88 = 497.54 : x
  2. Step 2: Convert to fraction form
    511.21/767.88 = 497.54/x
  3. Step 3: Cross multiply
    511.21x = 767.88 × 497.54
  4. Step 4: Simplify right side
    511.21x = 382,052.93
  5. Step 5: Solve for x
    x = 382,052.93/511.21
  6. Step 6: Final answer
    x = 747.35

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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.