Home / 215,399.06-296,002.15-205,520.21

Finding the Fourth Proportional to 215,399.06, 296,002.15 and 205,520.21

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Solution

The fourth proportional to 215,399.06, 296,002.15 and 205,520.21 is: 282,426.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,399.06 : 296,002.15 = 205,520.21 : x
  2. Step 2: Convert to fraction form
    215,399.06/296,002.15 = 205,520.21/x
  3. Step 3: Cross multiply
    215,399.06x = 296,002.15 × 205,520.21
  4. Step 4: Simplify right side
    215,399.06x = 60,834,424,028.45
  5. Step 5: Solve for x
    x = 60,834,424,028.45/215,399.06
  6. Step 6: Final answer
    x = 282,426.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.