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Finding the Fourth Proportional to 250,469.40, 345,661.02 and 137,296.92

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Solution

The fourth proportional to 250,469.40, 345,661.02 and 137,296.92 is: 189,477.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,469.40 : 345,661.02 = 137,296.92 : x
  2. Step 2: Convert to fraction form
    250,469.40/345,661.02 = 137,296.92/x
  3. Step 3: Cross multiply
    250,469.40x = 345,661.02 × 137,296.92
  4. Step 4: Simplify right side
    250,469.40x = 47,458,193,410.06
  5. Step 5: Solve for x
    x = 47,458,193,410.06/250,469.40
  6. Step 6: Final answer
    x = 189,477.01

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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.