Home / 412,191.45-618,328.94-142,284.41

Finding the Fourth Proportional to 412,191.45, 618,328.94 and 142,284.41

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Solution

The fourth proportional to 412,191.45, 618,328.94 and 142,284.41 is: 213,441.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,191.45 : 618,328.94 = 142,284.41 : x
  2. Step 2: Convert to fraction form
    412,191.45/618,328.94 = 142,284.41/x
  3. Step 3: Cross multiply
    412,191.45x = 618,328.94 × 142,284.41
  4. Step 4: Simplify right side
    412,191.45x = 87,978,567,702.40
  5. Step 5: Solve for x
    x = 87,978,567,702.40/412,191.45
  6. Step 6: Final answer
    x = 213,441.03

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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.