Home / 412,417.32-618,614.46-131,951.40

Finding the Fourth Proportional to 412,417.32, 618,614.46 and 131,951.40

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Solution

The fourth proportional to 412,417.32, 618,614.46 and 131,951.40 is: 197,923.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,417.32 : 618,614.46 = 131,951.40 : x
  2. Step 2: Convert to fraction form
    412,417.32/618,614.46 = 131,951.40/x
  3. Step 3: Cross multiply
    412,417.32x = 618,614.46 × 131,951.40
  4. Step 4: Simplify right side
    412,417.32x = 81,627,044,057.24
  5. Step 5: Solve for x
    x = 81,627,044,057.24/412,417.32
  6. Step 6: Final answer
    x = 197,923.41

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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.