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Finding the Fourth Proportional to 175,212.80, 262,819.20 and 133,740.80

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Solution

The fourth proportional to 175,212.80, 262,819.20 and 133,740.80 is: 200,611.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,212.80 : 262,819.20 = 133,740.80 : x
  2. Step 2: Convert to fraction form
    175,212.80/262,819.20 = 133,740.80/x
  3. Step 3: Cross multiply
    175,212.80x = 262,819.20 × 133,740.80
  4. Step 4: Simplify right side
    175,212.80x = 35,149,650,063.36
  5. Step 5: Solve for x
    x = 35,149,650,063.36/175,212.80
  6. Step 6: Final answer
    x = 200,611.20

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1.5x scale

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.