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Finding the Fourth Proportional to 555.72, 832.92 and 258.83

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Solution

The fourth proportional to 555.72, 832.92 and 258.83 is: 387.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.72 : 832.92 = 258.83 : x
  2. Step 2: Convert to fraction form
    555.72/832.92 = 258.83/x
  3. Step 3: Cross multiply
    555.72x = 832.92 × 258.83
  4. Step 4: Simplify right side
    555.72x = 215,584.68
  5. Step 5: Solve for x
    x = 215,584.68/555.72
  6. Step 6: Final answer
    x = 387.94

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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.