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Finding the Fourth Proportional to 250,037.36, 345,051.36 and 136,860

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Solution

The fourth proportional to 250,037.36, 345,051.36 and 136,860 is: 188,866.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,037.36 : 345,051.36 = 136,860 : x
  2. Step 2: Convert to fraction form
    250,037.36/345,051.36 = 136,860/x
  3. Step 3: Cross multiply
    250,037.36x = 345,051.36 × 136,860
  4. Step 4: Simplify right side
    250,037.36x = 47,223,729,129.60
  5. Step 5: Solve for x
    x = 47,223,729,129.60/250,037.36
  6. Step 6: Final answer
    x = 188,866.69

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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.