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Finding the Fourth Proportional to 250,036.36, 345,049.98 and 136,859

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Solution

The fourth proportional to 250,036.36, 345,049.98 and 136,859 is: 188,865.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,036.36 : 345,049.98 = 136,859 : x
  2. Step 2: Convert to fraction form
    250,036.36/345,049.98 = 136,859/x
  3. Step 3: Cross multiply
    250,036.36x = 345,049.98 × 136,859
  4. Step 4: Simplify right side
    250,036.36x = 47,223,195,212.82
  5. Step 5: Solve for x
    x = 47,223,195,212.82/250,036.36
  6. Step 6: Final answer
    x = 188,865.31

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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.