Home / 431,064.07-646,596.15-131,546.22

Finding the Fourth Proportional to 431,064.07, 646,596.15 and 131,546.22

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Solution

The fourth proportional to 431,064.07, 646,596.15 and 131,546.22 is: 197,319.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,064.07 : 646,596.15 = 131,546.22 : x
  2. Step 2: Convert to fraction form
    431,064.07/646,596.15 = 131,546.22/x
  3. Step 3: Cross multiply
    431,064.07x = 646,596.15 × 131,546.22
  4. Step 4: Simplify right side
    431,064.07x = 85,057,279,399.05
  5. Step 5: Solve for x
    x = 85,057,279,399.05/431,064.07
  6. Step 6: Final answer
    x = 197,319.34

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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.