Home / 209,072.43-288,509.04-113,578.83

Finding the Fourth Proportional to 209,072.43, 288,509.04 and 113,578.83

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Solution

The fourth proportional to 209,072.43, 288,509.04 and 113,578.83 is: 156,732.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,072.43 : 288,509.04 = 113,578.83 : x
  2. Step 2: Convert to fraction form
    209,072.43/288,509.04 = 113,578.83/x
  3. Step 3: Cross multiply
    209,072.43x = 288,509.04 × 113,578.83
  4. Step 4: Simplify right side
    209,072.43x = 32,768,519,207.62
  5. Step 5: Solve for x
    x = 32,768,519,207.62/209,072.43
  6. Step 6: Final answer
    x = 156,732.86

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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.