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Finding the Fourth Proportional to 236,665.60, 355,257.60 and 148,019.20

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Solution

The fourth proportional to 236,665.60, 355,257.60 and 148,019.20 is: 222,190.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,665.60 : 355,257.60 = 148,019.20 : x
  2. Step 2: Convert to fraction form
    236,665.60/355,257.60 = 148,019.20/x
  3. Step 3: Cross multiply
    236,665.60x = 355,257.60 × 148,019.20
  4. Step 4: Simplify right side
    236,665.60x = 52,584,945,745.92
  5. Step 5: Solve for x
    x = 52,584,945,745.92/236,665.60
  6. Step 6: Final answer
    x = 222,190.91

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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.