Home / 220,121.50-330,183.06-53,909.50

Finding the Fourth Proportional to 220,121.50, 330,183.06 and 53,909.50

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Solution

The fourth proportional to 220,121.50, 330,183.06 and 53,909.50 is: 80,864.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,121.50 : 330,183.06 = 53,909.50 : x
  2. Step 2: Convert to fraction form
    220,121.50/330,183.06 = 53,909.50/x
  3. Step 3: Cross multiply
    220,121.50x = 330,183.06 × 53,909.50
  4. Step 4: Simplify right side
    220,121.50x = 17,800,003,673.07
  5. Step 5: Solve for x
    x = 17,800,003,673.07/220,121.50
  6. Step 6: Final answer
    x = 80,864.45

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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.