Home / 215,398.06-296,000.78-205,519.21

Finding the Fourth Proportional to 215,398.06, 296,000.78 and 205,519.21

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Solution

The fourth proportional to 215,398.06, 296,000.78 and 205,519.21 is: 282,425.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,398.06 : 296,000.78 = 205,519.21 : x
  2. Step 2: Convert to fraction form
    215,398.06/296,000.78 = 205,519.21/x
  3. Step 3: Cross multiply
    215,398.06x = 296,000.78 × 205,519.21
  4. Step 4: Simplify right side
    215,398.06x = 60,833,844,697.39
  5. Step 5: Solve for x
    x = 60,833,844,697.39/215,398.06
  6. Step 6: Final answer
    x = 282,425.22

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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.