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Finding the Fourth Proportional to 275,467.76, 380,172.84 and 168,109.76

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Solution

The fourth proportional to 275,467.76, 380,172.84 and 168,109.76 is: 232,008.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,467.76 : 380,172.84 = 168,109.76 : x
  2. Step 2: Convert to fraction form
    275,467.76/380,172.84 = 168,109.76/x
  3. Step 3: Cross multiply
    275,467.76x = 380,172.84 × 168,109.76
  4. Step 4: Simplify right side
    275,467.76x = 63,910,764,890.92
  5. Step 5: Solve for x
    x = 63,910,764,890.92/275,467.76
  6. Step 6: Final answer
    x = 232,008.15

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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.