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Finding the Fourth Proportional to 209,107.62, 288,569.71 and 113,615.10

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Solution

The fourth proportional to 209,107.62, 288,569.71 and 113,615.10 is: 156,789.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,107.62 : 288,569.71 = 113,615.10 : x
  2. Step 2: Convert to fraction form
    209,107.62/288,569.71 = 113,615.10/x
  3. Step 3: Cross multiply
    209,107.62x = 288,569.71 × 113,615.10
  4. Step 4: Simplify right side
    209,107.62x = 32,785,876,458.62
  5. Step 5: Solve for x
    x = 32,785,876,458.62/209,107.62
  6. Step 6: Final answer
    x = 156,789.49

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.