Home / 266,056.20-398,112.30-196,072.20

Finding the Fourth Proportional to 266,056.20, 398,112.30 and 196,072.20

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Solution

The fourth proportional to 266,056.20, 398,112.30 and 196,072.20 is: 293,391.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,056.20 : 398,112.30 = 196,072.20 : x
  2. Step 2: Convert to fraction form
    266,056.20/398,112.30 = 196,072.20/x
  3. Step 3: Cross multiply
    266,056.20x = 398,112.30 × 196,072.20
  4. Step 4: Simplify right side
    266,056.20x = 78,058,754,508.06
  5. Step 5: Solve for x
    x = 78,058,754,508.06/266,056.20
  6. Step 6: Final answer
    x = 293,391.98

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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.