Home / 435,742.12-653,427.42-165,824.20

Finding the Fourth Proportional to 435,742.12, 653,427.42 and 165,824.20

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Solution

The fourth proportional to 435,742.12, 653,427.42 and 165,824.20 is: 248,665.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,742.12 : 653,427.42 = 165,824.20 : x
  2. Step 2: Convert to fraction form
    435,742.12/653,427.42 = 165,824.20/x
  3. Step 3: Cross multiply
    435,742.12x = 653,427.42 × 165,824.20
  4. Step 4: Simplify right side
    435,742.12x = 108,354,079,179.56
  5. Step 5: Solve for x
    x = 108,354,079,179.56/435,742.12
  6. Step 6: Final answer
    x = 248,665.61

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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.