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Finding the Fourth Proportional to 255,879.58, 352,999.68 and 148,387.36

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Solution

The fourth proportional to 255,879.58, 352,999.68 and 148,387.36 is: 204,708.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,879.58 : 352,999.68 = 148,387.36 : x
  2. Step 2: Convert to fraction form
    255,879.58/352,999.68 = 148,387.36/x
  3. Step 3: Cross multiply
    255,879.58x = 352,999.68 × 148,387.36
  4. Step 4: Simplify right side
    255,879.58x = 52,380,690,596.04
  5. Step 5: Solve for x
    x = 52,380,690,596.04/255,879.58
  6. Step 6: Final answer
    x = 204,708.37

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1.5x scale

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.