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Finding the Fourth Proportional to 293.27, 439.77 and 87.77

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Solution

The fourth proportional to 293.27, 439.77 and 87.77 is: 131.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.27 : 439.77 = 87.77 : x
  2. Step 2: Convert to fraction form
    293.27/439.77 = 87.77/x
  3. Step 3: Cross multiply
    293.27x = 439.77 × 87.77
  4. Step 4: Simplify right side
    293.27x = 38,598.61
  5. Step 5: Solve for x
    x = 38,598.61/293.27
  6. Step 6: Final answer
    x = 131.61

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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.