Home / 236,879.40-355,319.10-148,405.80

Finding the Fourth Proportional to 236,879.40, 355,319.10 and 148,405.80

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Solution

The fourth proportional to 236,879.40, 355,319.10 and 148,405.80 is: 222,608.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,879.40 : 355,319.10 = 148,405.80 : x
  2. Step 2: Convert to fraction form
    236,879.40/355,319.10 = 148,405.80/x
  3. Step 3: Cross multiply
    236,879.40x = 355,319.10 × 148,405.80
  4. Step 4: Simplify right side
    236,879.40x = 52,731,415,290.78
  5. Step 5: Solve for x
    x = 52,731,415,290.78/236,879.40
  6. Step 6: Final answer
    x = 222,608.70

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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.