Home / 209,287.48-288,815.23-113,794.15

Finding the Fourth Proportional to 209,287.48, 288,815.23 and 113,794.15

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Solution

The fourth proportional to 209,287.48, 288,815.23 and 113,794.15 is: 157,035.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,287.48 : 288,815.23 = 113,794.15 : x
  2. Step 2: Convert to fraction form
    209,287.48/288,815.23 = 113,794.15/x
  3. Step 3: Cross multiply
    209,287.48x = 288,815.23 × 113,794.15
  4. Step 4: Simplify right side
    209,287.48x = 32,865,483,604.90
  5. Step 5: Solve for x
    x = 32,865,483,604.90/209,287.48
  6. Step 6: Final answer
    x = 157,035.12

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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.