Home / 408,811.24-613,298.87-142,500.25

Finding the Fourth Proportional to 408,811.24, 613,298.87 and 142,500.25

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Solution

The fourth proportional to 408,811.24, 613,298.87 and 142,500.25 is: 213,778.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,811.24 : 613,298.87 = 142,500.25 : x
  2. Step 2: Convert to fraction form
    408,811.24/613,298.87 = 142,500.25/x
  3. Step 3: Cross multiply
    408,811.24x = 613,298.87 × 142,500.25
  4. Step 4: Simplify right side
    408,811.24x = 87,395,242,299.72
  5. Step 5: Solve for x
    x = 87,395,242,299.72/408,811.24
  6. Step 6: Final answer
    x = 213,778.96

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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.