Home / 226,021.20-338,815.80-83,828.40

Finding the Fourth Proportional to 226,021.20, 338,815.80 and 83,828.40

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Solution

The fourth proportional to 226,021.20, 338,815.80 and 83,828.40 is: 125,662.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,021.20 : 338,815.80 = 83,828.40 : x
  2. Step 2: Convert to fraction form
    226,021.20/338,815.80 = 83,828.40/x
  3. Step 3: Cross multiply
    226,021.20x = 338,815.80 × 83,828.40
  4. Step 4: Simplify right side
    226,021.20x = 28,402,386,408.72
  5. Step 5: Solve for x
    x = 28,402,386,408.72/226,021.20
  6. Step 6: Final answer
    x = 125,662.49

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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.