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Finding the Fourth Proportional to 226,576.60, 312,699.60 and 129,788.18

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Solution

The fourth proportional to 226,576.60, 312,699.60 and 129,788.18 is: 179,121.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,576.60 : 312,699.60 = 129,788.18 : x
  2. Step 2: Convert to fraction form
    226,576.60/312,699.60 = 129,788.18/x
  3. Step 3: Cross multiply
    226,576.60x = 312,699.60 × 129,788.18
  4. Step 4: Simplify right side
    226,576.60x = 40,584,711,970.73
  5. Step 5: Solve for x
    x = 40,584,711,970.73/226,576.60
  6. Step 6: Final answer
    x = 179,121.37

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1.5x scale

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.