Home / 226,434.11-312,149.74-158,239.36

Finding the Fourth Proportional to 226,434.11, 312,149.74 and 158,239.36

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Solution

The fourth proportional to 226,434.11, 312,149.74 and 158,239.36 is: 218,140.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,434.11 : 312,149.74 = 158,239.36 : x
  2. Step 2: Convert to fraction form
    226,434.11/312,149.74 = 158,239.36/x
  3. Step 3: Cross multiply
    226,434.11x = 312,149.74 × 158,239.36
  4. Step 4: Simplify right side
    226,434.11x = 49,394,375,081.77
  5. Step 5: Solve for x
    x = 49,394,375,081.77/226,434.11
  6. Step 6: Final answer
    x = 218,140.17

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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.