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Finding the Fourth Proportional to 271,572.80, 407,474.40 and 131,259.20

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Solution

The fourth proportional to 271,572.80, 407,474.40 and 131,259.20 is: 196,944.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,572.80 : 407,474.40 = 131,259.20 : x
  2. Step 2: Convert to fraction form
    271,572.80/407,474.40 = 131,259.20/x
  3. Step 3: Cross multiply
    271,572.80x = 407,474.40 × 131,259.20
  4. Step 4: Simplify right side
    271,572.80x = 53,484,763,764.48
  5. Step 5: Solve for x
    x = 53,484,763,764.48/271,572.80
  6. Step 6: Final answer
    x = 196,944.48

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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.