Home / 221,454.20-332,181.30-212,706.20

Finding the Fourth Proportional to 221,454.20, 332,181.30 and 212,706.20

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Solution

The fourth proportional to 221,454.20, 332,181.30 and 212,706.20 is: 319,059.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,454.20 : 332,181.30 = 212,706.20 : x
  2. Step 2: Convert to fraction form
    221,454.20/332,181.30 = 212,706.20/x
  3. Step 3: Cross multiply
    221,454.20x = 332,181.30 × 212,706.20
  4. Step 4: Simplify right side
    221,454.20x = 70,657,022,034.06
  5. Step 5: Solve for x
    x = 70,657,022,034.06/221,454.20
  6. Step 6: Final answer
    x = 319,059.30

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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.