Home / 311,857.20-465,336.30-292,813.80

Finding the Fourth Proportional to 311,857.20, 465,336.30 and 292,813.80

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Solution

The fourth proportional to 311,857.20, 465,336.30 and 292,813.80 is: 436,920.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,857.20 : 465,336.30 = 292,813.80 : x
  2. Step 2: Convert to fraction form
    311,857.20/465,336.30 = 292,813.80/x
  3. Step 3: Cross multiply
    311,857.20x = 465,336.30 × 292,813.80
  4. Step 4: Simplify right side
    311,857.20x = 136,256,890,280.94
  5. Step 5: Solve for x
    x = 136,256,890,280.94/311,857.20
  6. Step 6: Final answer
    x = 436,920.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.