Home / 209,236.28-288,742.64-113,745.38

Finding the Fourth Proportional to 209,236.28, 288,742.64 and 113,745.38

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Solution

The fourth proportional to 209,236.28, 288,742.64 and 113,745.38 is: 156,966.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,236.28 : 288,742.64 = 113,745.38 : x
  2. Step 2: Convert to fraction form
    209,236.28/288,742.64 = 113,745.38/x
  3. Step 3: Cross multiply
    209,236.28x = 288,742.64 × 113,745.38
  4. Step 4: Simplify right side
    209,236.28x = 32,843,139,296.56
  5. Step 5: Solve for x
    x = 32,843,139,296.56/209,236.28
  6. Step 6: Final answer
    x = 156,966.76

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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.