Home / 300,116.72-414,147.66-172,765.28

Finding the Fourth Proportional to 300,116.72, 414,147.66 and 172,765.28

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Solution

The fourth proportional to 300,116.72, 414,147.66 and 172,765.28 is: 238,408.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,116.72 : 414,147.66 = 172,765.28 : x
  2. Step 2: Convert to fraction form
    300,116.72/414,147.66 = 172,765.28/x
  3. Step 3: Cross multiply
    300,116.72x = 414,147.66 × 172,765.28
  4. Step 4: Simplify right side
    300,116.72x = 71,550,336,441.24
  5. Step 5: Solve for x
    x = 71,550,336,441.24/300,116.72
  6. Step 6: Final answer
    x = 238,408.36

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1.5x scale

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.