Home / 220,518.42-330,887.07-87,395.73

Finding the Fourth Proportional to 220,518.42, 330,887.07 and 87,395.73

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Solution

The fourth proportional to 220,518.42, 330,887.07 and 87,395.73 is: 131,136.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,518.42 : 330,887.07 = 87,395.73 : x
  2. Step 2: Convert to fraction form
    220,518.42/330,887.07 = 87,395.73/x
  3. Step 3: Cross multiply
    220,518.42x = 330,887.07 × 87,395.73
  4. Step 4: Simplify right side
    220,518.42x = 28,918,117,030.21
  5. Step 5: Solve for x
    x = 28,918,117,030.21/220,518.42
  6. Step 6: Final answer
    x = 131,136.97

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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.