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Finding the Fourth Proportional to 216,513.25, 298,794.57 and 118,402.25

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Solution

The fourth proportional to 216,513.25, 298,794.57 and 118,402.25 is: 163,398.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,513.25 : 298,794.57 = 118,402.25 : x
  2. Step 2: Convert to fraction form
    216,513.25/298,794.57 = 118,402.25/x
  3. Step 3: Cross multiply
    216,513.25x = 298,794.57 × 118,402.25
  4. Step 4: Simplify right side
    216,513.25x = 35,377,949,375.78
  5. Step 5: Solve for x
    x = 35,377,949,375.78/216,513.25
  6. Step 6: Final answer
    x = 163,398.54

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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.