Home / 209,268.12-288,788.56-113,774.83

Finding the Fourth Proportional to 209,268.12, 288,788.56 and 113,774.83

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Solution

The fourth proportional to 209,268.12, 288,788.56 and 113,774.83 is: 157,008.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,268.12 : 288,788.56 = 113,774.83 : x
  2. Step 2: Convert to fraction form
    209,268.12/288,788.56 = 113,774.83/x
  3. Step 3: Cross multiply
    209,268.12x = 288,788.56 × 113,774.83
  4. Step 4: Simplify right side
    209,268.12x = 32,856,868,313.54
  5. Step 5: Solve for x
    x = 32,856,868,313.54/209,268.12
  6. Step 6: Final answer
    x = 157,008.47

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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.