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Finding the Fourth Proportional to 236,042.28, 325,734.20 and 128,613.16

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Solution

The fourth proportional to 236,042.28, 325,734.20 and 128,613.16 is: 177,483.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,042.28 : 325,734.20 = 128,613.16 : x
  2. Step 2: Convert to fraction form
    236,042.28/325,734.20 = 128,613.16/x
  3. Step 3: Cross multiply
    236,042.28x = 325,734.20 × 128,613.16
  4. Step 4: Simplify right side
    236,042.28x = 41,893,704,782.07
  5. Step 5: Solve for x
    x = 41,893,704,782.07/236,042.28
  6. Step 6: Final answer
    x = 177,483.90

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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.