Home / 259,742.72-358,441.46-145,023.12

Finding the Fourth Proportional to 259,742.72, 358,441.46 and 145,023.12

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Solution

The fourth proportional to 259,742.72, 358,441.46 and 145,023.12 is: 200,129.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,742.72 : 358,441.46 = 145,023.12 : x
  2. Step 2: Convert to fraction form
    259,742.72/358,441.46 = 145,023.12/x
  3. Step 3: Cross multiply
    259,742.72x = 358,441.46 × 145,023.12
  4. Step 4: Simplify right side
    259,742.72x = 51,982,299,229.11
  5. Step 5: Solve for x
    x = 51,982,299,229.11/259,742.72
  6. Step 6: Final answer
    x = 200,129.96

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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.