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Finding the Fourth Proportional to 587.29, 880.06 and 257.92

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Solution

The fourth proportional to 587.29, 880.06 and 257.92 is: 386.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.29 : 880.06 = 257.92 : x
  2. Step 2: Convert to fraction form
    587.29/880.06 = 257.92/x
  3. Step 3: Cross multiply
    587.29x = 880.06 × 257.92
  4. Step 4: Simplify right side
    587.29x = 226,985.08
  5. Step 5: Solve for x
    x = 226,985.08/587.29
  6. Step 6: Final answer
    x = 386.50

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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.