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Finding the Fourth Proportional to 255,657.69, 352,819.67 and 142,481.25

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Solution

The fourth proportional to 255,657.69, 352,819.67 and 142,481.25 is: 196,630.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,657.69 : 352,819.67 = 142,481.25 : x
  2. Step 2: Convert to fraction form
    255,657.69/352,819.67 = 142,481.25/x
  3. Step 3: Cross multiply
    255,657.69x = 352,819.67 × 142,481.25
  4. Step 4: Simplify right side
    255,657.69x = 50,270,186,893.78
  5. Step 5: Solve for x
    x = 50,270,186,893.78/255,657.69
  6. Step 6: Final answer
    x = 196,630.84

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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.