Home / 218,840.36-328,295.50-92,481.80

Finding the Fourth Proportional to 218,840.36, 328,295.50 and 92,481.80

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Solution

The fourth proportional to 218,840.36, 328,295.50 and 92,481.80 is: 138,737.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,840.36 : 328,295.50 = 92,481.80 : x
  2. Step 2: Convert to fraction form
    218,840.36/328,295.50 = 92,481.80/x
  3. Step 3: Cross multiply
    218,840.36x = 328,295.50 × 92,481.80
  4. Step 4: Simplify right side
    218,840.36x = 30,361,356,899.22
  5. Step 5: Solve for x
    x = 30,361,356,899.22/218,840.36
  6. Step 6: Final answer
    x = 138,737.47

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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.