Home / 220,516.26-330,852.15-80,289.06

Finding the Fourth Proportional to 220,516.26, 330,852.15 and 80,289.06

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Solution

The fourth proportional to 220,516.26, 330,852.15 and 80,289.06 is: 120,461.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,516.26 : 330,852.15 = 80,289.06 : x
  2. Step 2: Convert to fraction form
    220,516.26/330,852.15 = 80,289.06/x
  3. Step 3: Cross multiply
    220,516.26x = 330,852.15 × 80,289.06
  4. Step 4: Simplify right side
    220,516.26x = 26,563,808,122.48
  5. Step 5: Solve for x
    x = 26,563,808,122.48/220,516.26
  6. Step 6: Final answer
    x = 120,461.90

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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.