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Finding the Fourth Proportional to 226,740.80, 340,373.10 and 121,764.80

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Solution

The fourth proportional to 226,740.80, 340,373.10 and 121,764.80 is: 182,787.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,740.80 : 340,373.10 = 121,764.80 : x
  2. Step 2: Convert to fraction form
    226,740.80/340,373.10 = 121,764.80/x
  3. Step 3: Cross multiply
    226,740.80x = 340,373.10 × 121,764.80
  4. Step 4: Simplify right side
    226,740.80x = 41,445,462,446.88
  5. Step 5: Solve for x
    x = 41,445,462,446.88/226,740.80
  6. Step 6: Final answer
    x = 182,787.85

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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.