Home / 259,720.11-358,419.38-143,433.23

Finding the Fourth Proportional to 259,720.11, 358,419.38 and 143,433.23

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Solution

The fourth proportional to 259,720.11, 358,419.38 and 143,433.23 is: 197,940.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,720.11 : 358,419.38 = 143,433.23 : x
  2. Step 2: Convert to fraction form
    259,720.11/358,419.38 = 143,433.23/x
  3. Step 3: Cross multiply
    259,720.11x = 358,419.38 × 143,433.23
  4. Step 4: Simplify right side
    259,720.11x = 51,409,246,858.73
  5. Step 5: Solve for x
    x = 51,409,246,858.73/259,720.11
  6. Step 6: Final answer
    x = 197,940.96

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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.