Home / 371,554.11-512,747.69-201,789.45

Finding the Fourth Proportional to 371,554.11, 512,747.69 and 201,789.45

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Solution

The fourth proportional to 371,554.11, 512,747.69 and 201,789.45 is: 278,471.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,554.11 : 512,747.69 = 201,789.45 : x
  2. Step 2: Convert to fraction form
    371,554.11/512,747.69 = 201,789.45/x
  3. Step 3: Cross multiply
    371,554.11x = 512,747.69 × 201,789.45
  4. Step 4: Simplify right side
    371,554.11x = 103,467,073,344.92
  5. Step 5: Solve for x
    x = 103,467,073,344.92/371,554.11
  6. Step 6: Final answer
    x = 278,471.08

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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.