Home / 220,935.40-331,458.30-71,189.80

Finding the Fourth Proportional to 220,935.40, 331,458.30 and 71,189.80

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Solution

The fourth proportional to 220,935.40, 331,458.30 and 71,189.80 is: 106,802.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,935.40 : 331,458.30 = 71,189.80 : x
  2. Step 2: Convert to fraction form
    220,935.40/331,458.30 = 71,189.80/x
  3. Step 3: Cross multiply
    220,935.40x = 331,458.30 × 71,189.80
  4. Step 4: Simplify right side
    220,935.40x = 23,596,450,085.34
  5. Step 5: Solve for x
    x = 23,596,450,085.34/220,935.40
  6. Step 6: Final answer
    x = 106,802.49

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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.