Home / 431,064.20-646,596.34-131,546.34

Finding the Fourth Proportional to 431,064.20, 646,596.34 and 131,546.34

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Solution

The fourth proportional to 431,064.20, 646,596.34 and 131,546.34 is: 197,319.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,064.20 : 646,596.34 = 131,546.34 : x
  2. Step 2: Convert to fraction form
    431,064.20/646,596.34 = 131,546.34/x
  3. Step 3: Cross multiply
    431,064.20x = 646,596.34 × 131,546.34
  4. Step 4: Simplify right side
    431,064.20x = 85,057,381,655.53
  5. Step 5: Solve for x
    x = 85,057,381,655.53/431,064.20
  6. Step 6: Final answer
    x = 197,319.52

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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.