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Finding the Fourth Proportional to 275,862.80, 380,649.84 and 159,572.72

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Solution

The fourth proportional to 275,862.80, 380,649.84 and 159,572.72 is: 220,186.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,862.80 : 380,649.84 = 159,572.72 : x
  2. Step 2: Convert to fraction form
    275,862.80/380,649.84 = 159,572.72/x
  3. Step 3: Cross multiply
    275,862.80x = 380,649.84 × 159,572.72
  4. Step 4: Simplify right side
    275,862.80x = 60,741,330,336.36
  5. Step 5: Solve for x
    x = 60,741,330,336.36/275,862.80
  6. Step 6: Final answer
    x = 220,186.74

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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.