Home / 220,765.20-330,491.70-197,145.60

Finding the Fourth Proportional to 220,765.20, 330,491.70 and 197,145.60

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Solution

The fourth proportional to 220,765.20, 330,491.70 and 197,145.60 is: 295,132.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,765.20 : 330,491.70 = 197,145.60 : x
  2. Step 2: Convert to fraction form
    220,765.20/330,491.70 = 197,145.60/x
  3. Step 3: Cross multiply
    220,765.20x = 330,491.70 × 197,145.60
  4. Step 4: Simplify right side
    220,765.20x = 65,154,984,491.52
  5. Step 5: Solve for x
    x = 65,154,984,491.52/220,765.20
  6. Step 6: Final answer
    x = 295,132.50

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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.