Home / 430,795.31-646,086.02-131,198.18

Finding the Fourth Proportional to 430,795.31, 646,086.02 and 131,198.18

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Solution

The fourth proportional to 430,795.31, 646,086.02 and 131,198.18 is: 196,764.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,795.31 : 646,086.02 = 131,198.18 : x
  2. Step 2: Convert to fraction form
    430,795.31/646,086.02 = 131,198.18/x
  3. Step 3: Cross multiply
    430,795.31x = 646,086.02 × 131,198.18
  4. Step 4: Simplify right side
    430,795.31x = 84,765,306,061.02
  5. Step 5: Solve for x
    x = 84,765,306,061.02/430,795.31
  6. Step 6: Final answer
    x = 196,764.69

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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.