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Finding the Fourth Proportional to 307,799.97, 424,940.61 and 234,628.39

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Solution

The fourth proportional to 307,799.97, 424,940.61 and 234,628.39 is: 323,921.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,799.97 : 424,940.61 = 234,628.39 : x
  2. Step 2: Convert to fraction form
    307,799.97/424,940.61 = 234,628.39/x
  3. Step 3: Cross multiply
    307,799.97x = 424,940.61 × 234,628.39
  4. Step 4: Simplify right side
    307,799.97x = 99,703,131,169.92
  5. Step 5: Solve for x
    x = 99,703,131,169.92/307,799.97
  6. Step 6: Final answer
    x = 323,921.84

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1.5x scale

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.