Home / 226,917.40-340,376.10-212,920.60

Finding the Fourth Proportional to 226,917.40, 340,376.10 and 212,920.60

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Solution

The fourth proportional to 226,917.40, 340,376.10 and 212,920.60 is: 319,380.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,917.40 : 340,376.10 = 212,920.60 : x
  2. Step 2: Convert to fraction form
    226,917.40/340,376.10 = 212,920.60/x
  3. Step 3: Cross multiply
    226,917.40x = 340,376.10 × 212,920.60
  4. Step 4: Simplify right side
    226,917.40x = 72,473,083,437.66
  5. Step 5: Solve for x
    x = 72,473,083,437.66/226,917.40
  6. Step 6: Final answer
    x = 319,380.90

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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.