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Finding the Fourth Proportional to 221,794.67, 332,719.65 and 86,841.32

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Solution

The fourth proportional to 221,794.67, 332,719.65 and 86,841.32 is: 130,272.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,794.67 : 332,719.65 = 86,841.32 : x
  2. Step 2: Convert to fraction form
    221,794.67/332,719.65 = 86,841.32/x
  3. Step 3: Cross multiply
    221,794.67x = 332,719.65 × 86,841.32
  4. Step 4: Simplify right side
    221,794.67x = 28,893,811,932.34
  5. Step 5: Solve for x
    x = 28,893,811,932.34/221,794.67
  6. Step 6: Final answer
    x = 130,272.80

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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.