Home / 397,112.12-595,540.20-130,809.23

Finding the Fourth Proportional to 397,112.12, 595,540.20 and 130,809.23

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Solution

The fourth proportional to 397,112.12, 595,540.20 and 130,809.23 is: 196,171.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,112.12 : 595,540.20 = 130,809.23 : x
  2. Step 2: Convert to fraction form
    397,112.12/595,540.20 = 130,809.23/x
  3. Step 3: Cross multiply
    397,112.12x = 595,540.20 × 130,809.23
  4. Step 4: Simplify right side
    397,112.12x = 77,902,154,006.35
  5. Step 5: Solve for x
    x = 77,902,154,006.35/397,112.12
  6. Step 6: Final answer
    x = 196,171.69

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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.