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Finding the Fourth Proportional to 299,462.02, 449,257.56 and 86,228.46

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Solution

The fourth proportional to 299,462.02, 449,257.56 and 86,228.46 is: 129,361.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,462.02 : 449,257.56 = 86,228.46 : x
  2. Step 2: Convert to fraction form
    299,462.02/449,257.56 = 86,228.46/x
  3. Step 3: Cross multiply
    299,462.02x = 449,257.56 × 86,228.46
  4. Step 4: Simplify right side
    299,462.02x = 38,738,787,542.16
  5. Step 5: Solve for x
    x = 38,738,787,542.16/299,462.02
  6. Step 6: Final answer
    x = 129,361.27

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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.