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Finding the Fourth Proportional to 371,299.29, 512,379.30 and 201,529.77

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Solution

The fourth proportional to 371,299.29, 512,379.30 and 201,529.77 is: 278,103.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,299.29 : 512,379.30 = 201,529.77 : x
  2. Step 2: Convert to fraction form
    371,299.29/512,379.30 = 201,529.77/x
  3. Step 3: Cross multiply
    371,299.29x = 512,379.30 × 201,529.77
  4. Step 4: Simplify right side
    371,299.29x = 103,259,682,481.76
  5. Step 5: Solve for x
    x = 103,259,682,481.76/371,299.29
  6. Step 6: Final answer
    x = 278,103.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.