Home / 311,826.64-430,320.79-168,586.64

Finding the Fourth Proportional to 311,826.64, 430,320.79 and 168,586.64

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Solution

The fourth proportional to 311,826.64, 430,320.79 and 168,586.64 is: 232,649.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,826.64 : 430,320.79 = 168,586.64 : x
  2. Step 2: Convert to fraction form
    311,826.64/430,320.79 = 168,586.64/x
  3. Step 3: Cross multiply
    311,826.64x = 430,320.79 × 168,586.64
  4. Step 4: Simplify right side
    311,826.64x = 72,546,336,108.25
  5. Step 5: Solve for x
    x = 72,546,336,108.25/311,826.64
  6. Step 6: Final answer
    x = 232,649.58

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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.