Home / 200,249.40-300,423.21-92,128.17

Finding the Fourth Proportional to 200,249.40, 300,423.21 and 92,128.17

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Solution

The fourth proportional to 200,249.40, 300,423.21 and 92,128.17 is: 138,214.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,249.40 : 300,423.21 = 92,128.17 : x
  2. Step 2: Convert to fraction form
    200,249.40/300,423.21 = 92,128.17/x
  3. Step 3: Cross multiply
    200,249.40x = 300,423.21 × 92,128.17
  4. Step 4: Simplify right side
    200,249.40x = 27,677,440,562.83
  5. Step 5: Solve for x
    x = 27,677,440,562.83/200,249.40
  6. Step 6: Final answer
    x = 138,214.85

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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.