Home / 220,668.42-331,051.84-80,427.05

Finding the Fourth Proportional to 220,668.42, 331,051.84 and 80,427.05

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Solution

The fourth proportional to 220,668.42, 331,051.84 and 80,427.05 is: 120,658.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,668.42 : 331,051.84 = 80,427.05 : x
  2. Step 2: Convert to fraction form
    220,668.42/331,051.84 = 80,427.05/x
  3. Step 3: Cross multiply
    220,668.42x = 331,051.84 × 80,427.05
  4. Step 4: Simplify right side
    220,668.42x = 26,625,522,574.99
  5. Step 5: Solve for x
    x = 26,625,522,574.99/220,668.42
  6. Step 6: Final answer
    x = 120,658.51

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1.5x scale

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.