Home / 221,368.08-331,936.82-79,158.54

Finding the Fourth Proportional to 221,368.08, 331,936.82 and 79,158.54

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Solution

The fourth proportional to 221,368.08, 331,936.82 and 79,158.54 is: 118,696.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,368.08 : 331,936.82 = 79,158.54 : x
  2. Step 2: Convert to fraction form
    221,368.08/331,936.82 = 79,158.54/x
  3. Step 3: Cross multiply
    221,368.08x = 331,936.82 × 79,158.54
  4. Step 4: Simplify right side
    221,368.08x = 26,275,633,647.65
  5. Step 5: Solve for x
    x = 26,275,633,647.65/221,368.08
  6. Step 6: Final answer
    x = 118,696.58

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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.