Home / 218,910.12-328,398.96-92,550.77

Finding the Fourth Proportional to 218,910.12, 328,398.96 and 92,550.77

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Solution

The fourth proportional to 218,910.12, 328,398.96 and 92,550.77 is: 138,840.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,910.12 : 328,398.96 = 92,550.77 : x
  2. Step 2: Convert to fraction form
    218,910.12/328,398.96 = 92,550.77/x
  3. Step 3: Cross multiply
    218,910.12x = 328,398.96 × 92,550.77
  4. Step 4: Simplify right side
    218,910.12x = 30,393,577,783.26
  5. Step 5: Solve for x
    x = 30,393,577,783.26/218,910.12
  6. Step 6: Final answer
    x = 138,840.44

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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.