Home / 209,739.28-289,440.33-114,246.40

Finding the Fourth Proportional to 209,739.28, 289,440.33 and 114,246.40

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Solution

The fourth proportional to 209,739.28, 289,440.33 and 114,246.40 is: 157,660.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,739.28 : 289,440.33 = 114,246.40 : x
  2. Step 2: Convert to fraction form
    209,739.28/289,440.33 = 114,246.40/x
  3. Step 3: Cross multiply
    209,739.28x = 289,440.33 × 114,246.40
  4. Step 4: Simplify right side
    209,739.28x = 33,067,515,717.31
  5. Step 5: Solve for x
    x = 33,067,515,717.31/209,739.28
  6. Step 6: Final answer
    x = 157,660.10

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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.