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Finding the Fourth Proportional to 265,209.58, 396,720.87 and 170,293.78

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Solution

The fourth proportional to 265,209.58, 396,720.87 and 170,293.78 is: 254,738.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,209.58 : 396,720.87 = 170,293.78 : x
  2. Step 2: Convert to fraction form
    265,209.58/396,720.87 = 170,293.78/x
  3. Step 3: Cross multiply
    265,209.58x = 396,720.87 × 170,293.78
  4. Step 4: Simplify right side
    265,209.58x = 67,559,096,557.19
  5. Step 5: Solve for x
    x = 67,559,096,557.19/265,209.58
  6. Step 6: Final answer
    x = 254,738.52

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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.