Home / 656,152.20-984,228.30-212,920.20

Finding the Fourth Proportional to 656,152.20, 984,228.30 and 212,920.20

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Solution

The fourth proportional to 656,152.20, 984,228.30 and 212,920.20 is: 319,380.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,152.20 : 984,228.30 = 212,920.20 : x
  2. Step 2: Convert to fraction form
    656,152.20/984,228.30 = 212,920.20/x
  3. Step 3: Cross multiply
    656,152.20x = 984,228.30 × 212,920.20
  4. Step 4: Simplify right side
    656,152.20x = 209,562,086,481.66
  5. Step 5: Solve for x
    x = 209,562,086,481.66/656,152.20
  6. Step 6: Final answer
    x = 319,380.30

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Double scale
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Similar ratio
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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.