Home / 200,721.40-300,936.30-82,331.80

Finding the Fourth Proportional to 200,721.40, 300,936.30 and 82,331.80

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Solution

The fourth proportional to 200,721.40, 300,936.30 and 82,331.80 is: 123,437.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,721.40 : 300,936.30 = 82,331.80 : x
  2. Step 2: Convert to fraction form
    200,721.40/300,936.30 = 82,331.80/x
  3. Step 3: Cross multiply
    200,721.40x = 300,936.30 × 82,331.80
  4. Step 4: Simplify right side
    200,721.40x = 24,776,627,264.34
  5. Step 5: Solve for x
    x = 24,776,627,264.34/200,721.40
  6. Step 6: Final answer
    x = 123,437.90

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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.