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Finding the Fourth Proportional to 150,420.64, 225,572.64 and 80,261.68

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Solution

The fourth proportional to 150,420.64, 225,572.64 and 80,261.68 is: 120,361.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,420.64 : 225,572.64 = 80,261.68 : x
  2. Step 2: Convert to fraction form
    150,420.64/225,572.64 = 80,261.68/x
  3. Step 3: Cross multiply
    150,420.64x = 225,572.64 × 80,261.68
  4. Step 4: Simplify right side
    150,420.64x = 18,104,839,048.44
  5. Step 5: Solve for x
    x = 18,104,839,048.44/150,420.64
  6. Step 6: Final answer
    x = 120,361.40

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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.