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Finding the Fourth Proportional to 308,406.24, 425,841.84 and 236,672.64

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Solution

The fourth proportional to 308,406.24, 425,841.84 and 236,672.64 is: 326,793.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,406.24 : 425,841.84 = 236,672.64 : x
  2. Step 2: Convert to fraction form
    308,406.24/425,841.84 = 236,672.64/x
  3. Step 3: Cross multiply
    308,406.24x = 425,841.84 × 236,672.64
  4. Step 4: Simplify right side
    308,406.24x = 100,785,112,495.26
  5. Step 5: Solve for x
    x = 100,785,112,495.26/308,406.24
  6. Step 6: Final answer
    x = 326,793.36

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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.