Home / 378,974.61-523,072.92-249,936.45

Finding the Fourth Proportional to 378,974.61, 523,072.92 and 249,936.45

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Solution

The fourth proportional to 378,974.61, 523,072.92 and 249,936.45 is: 344,970.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,974.61 : 523,072.92 = 249,936.45 : x
  2. Step 2: Convert to fraction form
    378,974.61/523,072.92 = 249,936.45/x
  3. Step 3: Cross multiply
    378,974.61x = 523,072.92 × 249,936.45
  4. Step 4: Simplify right side
    378,974.61x = 130,734,988,715.93
  5. Step 5: Solve for x
    x = 130,734,988,715.93/378,974.61
  6. Step 6: Final answer
    x = 344,970.31

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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.