Home / 215,910.80-323,477.40-132,707.60

Finding the Fourth Proportional to 215,910.80, 323,477.40 and 132,707.60

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Solution

The fourth proportional to 215,910.80, 323,477.40 and 132,707.60 is: 198,822.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,910.80 : 323,477.40 = 132,707.60 : x
  2. Step 2: Convert to fraction form
    215,910.80/323,477.40 = 132,707.60/x
  3. Step 3: Cross multiply
    215,910.80x = 323,477.40 × 132,707.60
  4. Step 4: Simplify right side
    215,910.80x = 42,927,909,408.24
  5. Step 5: Solve for x
    x = 42,927,909,408.24/215,910.80
  6. Step 6: Final answer
    x = 198,822.43

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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.