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Finding the Fourth Proportional to 555.81, 766.17 and 467.25

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Solution

The fourth proportional to 555.81, 766.17 and 467.25 is: 644.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.81 : 766.17 = 467.25 : x
  2. Step 2: Convert to fraction form
    555.81/766.17 = 467.25/x
  3. Step 3: Cross multiply
    555.81x = 766.17 × 467.25
  4. Step 4: Simplify right side
    555.81x = 357,992.93
  5. Step 5: Solve for x
    x = 357,992.93/555.81
  6. Step 6: Final answer
    x = 644.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.