Home / 221,427.10-332,140.65-219,458.80

Finding the Fourth Proportional to 221,427.10, 332,140.65 and 219,458.80

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Solution

The fourth proportional to 221,427.10, 332,140.65 and 219,458.80 is: 329,188.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,427.10 : 332,140.65 = 219,458.80 : x
  2. Step 2: Convert to fraction form
    221,427.10/332,140.65 = 219,458.80/x
  3. Step 3: Cross multiply
    221,427.10x = 332,140.65 × 219,458.80
  4. Step 4: Simplify right side
    221,427.10x = 72,891,188,480.22
  5. Step 5: Solve for x
    x = 72,891,188,480.22/221,427.10
  6. Step 6: Final answer
    x = 329,188.20

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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.