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Finding the Fourth Proportional to 511.83, 766.58 and 305.96

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Solution

The fourth proportional to 511.83, 766.58 and 305.96 is: 458.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    511.83 : 766.58 = 305.96 : x
  2. Step 2: Convert to fraction form
    511.83/766.58 = 305.96/x
  3. Step 3: Cross multiply
    511.83x = 766.58 × 305.96
  4. Step 4: Simplify right side
    511.83x = 234,537.45
  5. Step 5: Solve for x
    x = 234,537.45/511.83
  6. Step 6: Final answer
    x = 458.23

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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.