Home / 274,057.20-411,085.80-211,772.40

Finding the Fourth Proportional to 274,057.20, 411,085.80 and 211,772.40

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Solution

The fourth proportional to 274,057.20, 411,085.80 and 211,772.40 is: 317,658.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,057.20 : 411,085.80 = 211,772.40 : x
  2. Step 2: Convert to fraction form
    274,057.20/411,085.80 = 211,772.40/x
  3. Step 3: Cross multiply
    274,057.20x = 411,085.80 × 211,772.40
  4. Step 4: Simplify right side
    274,057.20x = 87,056,626,471.92
  5. Step 5: Solve for x
    x = 87,056,626,471.92/274,057.20
  6. Step 6: Final answer
    x = 317,658.60

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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.