Home / 412,252.80-618,314.40-145,975.20

Finding the Fourth Proportional to 412,252.80, 618,314.40 and 145,975.20

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Solution

The fourth proportional to 412,252.80, 618,314.40 and 145,975.20 is: 218,939.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,252.80 : 618,314.40 = 145,975.20 : x
  2. Step 2: Convert to fraction form
    412,252.80/618,314.40 = 145,975.20/x
  3. Step 3: Cross multiply
    412,252.80x = 618,314.40 × 145,975.20
  4. Step 4: Simplify right side
    412,252.80x = 90,258,568,202.88
  5. Step 5: Solve for x
    x = 90,258,568,202.88/412,252.80
  6. Step 6: Final answer
    x = 218,939.85

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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.