Home / 209,339.28-288,880.16-113,846.09

Finding the Fourth Proportional to 209,339.28, 288,880.16 and 113,846.09

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Solution

The fourth proportional to 209,339.28, 288,880.16 and 113,846.09 is: 157,103.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,339.28 : 288,880.16 = 113,846.09 : x
  2. Step 2: Convert to fraction form
    209,339.28/288,880.16 = 113,846.09/x
  3. Step 3: Cross multiply
    209,339.28x = 288,880.16 × 113,846.09
  4. Step 4: Simplify right side
    209,339.28x = 32,887,874,680.94
  5. Step 5: Solve for x
    x = 32,887,874,680.94/209,339.28
  6. Step 6: Final answer
    x = 157,103.22

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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.