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Finding the Fourth Proportional to 250,035.36, 345,048.60 and 136,858

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Solution

The fourth proportional to 250,035.36, 345,048.60 and 136,858 is: 188,863.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,035.36 : 345,048.60 = 136,858 : x
  2. Step 2: Convert to fraction form
    250,035.36/345,048.60 = 136,858/x
  3. Step 3: Cross multiply
    250,035.36x = 345,048.60 × 136,858
  4. Step 4: Simplify right side
    250,035.36x = 47,222,661,298.80
  5. Step 5: Solve for x
    x = 47,222,661,298.80/250,035.36
  6. Step 6: Final answer
    x = 188,863.93

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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.