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Finding the Fourth Proportional to 239,660.80, 359,361.60 and 99,433.60

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Solution

The fourth proportional to 239,660.80, 359,361.60 and 99,433.60 is: 149,096.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,660.80 : 359,361.60 = 99,433.60 : x
  2. Step 2: Convert to fraction form
    239,660.80/359,361.60 = 99,433.60/x
  3. Step 3: Cross multiply
    239,660.80x = 359,361.60 × 99,433.60
  4. Step 4: Simplify right side
    239,660.80x = 35,732,617,589.76
  5. Step 5: Solve for x
    x = 35,732,617,589.76/239,660.80
  6. Step 6: Final answer
    x = 149,096.63

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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.