Home / 430,863.12-646,589.88-150,380.37

Finding the Fourth Proportional to 430,863.12, 646,589.88 and 150,380.37

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Solution

The fourth proportional to 430,863.12, 646,589.88 and 150,380.37 is: 225,673.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,863.12 : 646,589.88 = 150,380.37 : x
  2. Step 2: Convert to fraction form
    430,863.12/646,589.88 = 150,380.37/x
  3. Step 3: Cross multiply
    430,863.12x = 646,589.88 × 150,380.37
  4. Step 4: Simplify right side
    430,863.12x = 97,234,425,392.66
  5. Step 5: Solve for x
    x = 97,234,425,392.66/430,863.12
  6. Step 6: Final answer
    x = 225,673.59

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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.