Home / 354,769.40-532,542.90-221,799.80

Finding the Fourth Proportional to 354,769.40, 532,542.90 and 221,799.80

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Solution

The fourth proportional to 354,769.40, 532,542.90 and 221,799.80 is: 332,942.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,769.40 : 532,542.90 = 221,799.80 : x
  2. Step 2: Convert to fraction form
    354,769.40/532,542.90 = 221,799.80/x
  3. Step 3: Cross multiply
    354,769.40x = 532,542.90 × 221,799.80
  4. Step 4: Simplify right side
    354,769.40x = 118,117,908,711.42
  5. Step 5: Solve for x
    x = 118,117,908,711.42/354,769.40
  6. Step 6: Final answer
    x = 332,942.78

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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.