Home / 209,011.86-288,431.62-113,516.50

Finding the Fourth Proportional to 209,011.86, 288,431.62 and 113,516.50

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Solution

The fourth proportional to 209,011.86, 288,431.62 and 113,516.50 is: 156,650.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,011.86 : 288,431.62 = 113,516.50 : x
  2. Step 2: Convert to fraction form
    209,011.86/288,431.62 = 113,516.50/x
  3. Step 3: Cross multiply
    209,011.86x = 288,431.62 × 113,516.50
  4. Step 4: Simplify right side
    209,011.86x = 32,741,747,991.73
  5. Step 5: Solve for x
    x = 32,741,747,991.73/209,011.86
  6. Step 6: Final answer
    x = 156,650.19

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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.