Home / 261,972.94-393,036.09-84,476.38

Finding the Fourth Proportional to 261,972.94, 393,036.09 and 84,476.38

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Solution

The fourth proportional to 261,972.94, 393,036.09 and 84,476.38 is: 126,739.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,972.94 : 393,036.09 = 84,476.38 : x
  2. Step 2: Convert to fraction form
    261,972.94/393,036.09 = 84,476.38/x
  3. Step 3: Cross multiply
    261,972.94x = 393,036.09 × 84,476.38
  4. Step 4: Simplify right side
    261,972.94x = 33,202,266,092.55
  5. Step 5: Solve for x
    x = 33,202,266,092.55/261,972.94
  6. Step 6: Final answer
    x = 126,739.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.