Home / 311,826.60-430,321.05-168,586.65

Finding the Fourth Proportional to 311,826.60, 430,321.05 and 168,586.65

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Solution

The fourth proportional to 311,826.60, 430,321.05 and 168,586.65 is: 232,649.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,826.60 : 430,321.05 = 168,586.65 : x
  2. Step 2: Convert to fraction form
    311,826.60/430,321.05 = 168,586.65/x
  3. Step 3: Cross multiply
    311,826.60x = 430,321.05 × 168,586.65
  4. Step 4: Simplify right side
    311,826.60x = 72,546,384,243.98
  5. Step 5: Solve for x
    x = 72,546,384,243.98/311,826.60
  6. Step 6: Final answer
    x = 232,649.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.