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Finding the Fourth Proportional to 275,600.92, 380,367.30 and 153,120.76

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Solution

The fourth proportional to 275,600.92, 380,367.30 and 153,120.76 is: 211,327.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,600.92 : 380,367.30 = 153,120.76 : x
  2. Step 2: Convert to fraction form
    275,600.92/380,367.30 = 153,120.76/x
  3. Step 3: Cross multiply
    275,600.92x = 380,367.30 × 153,120.76
  4. Step 4: Simplify right side
    275,600.92x = 58,242,130,055.15
  5. Step 5: Solve for x
    x = 58,242,130,055.15/275,600.92
  6. Step 6: Final answer
    x = 211,327.78

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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.