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Finding the Fourth Proportional to 259,490.52, 389,097.30 and 133,079.46

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Solution

The fourth proportional to 259,490.52, 389,097.30 and 133,079.46 is: 199,548.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,490.52 : 389,097.30 = 133,079.46 : x
  2. Step 2: Convert to fraction form
    259,490.52/389,097.30 = 133,079.46/x
  3. Step 3: Cross multiply
    259,490.52x = 389,097.30 × 133,079.46
  4. Step 4: Simplify right side
    259,490.52x = 51,780,858,571.46
  5. Step 5: Solve for x
    x = 51,780,858,571.46/259,490.52
  6. Step 6: Final answer
    x = 199,548.17

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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.