Home / 220,631.52-330,881.31-80,357.34

Finding the Fourth Proportional to 220,631.52, 330,881.31 and 80,357.34

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Solution

The fourth proportional to 220,631.52, 330,881.31 and 80,357.34 is: 120,511.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,631.52 : 330,881.31 = 80,357.34 : x
  2. Step 2: Convert to fraction form
    220,631.52/330,881.31 = 80,357.34/x
  3. Step 3: Cross multiply
    220,631.52x = 330,881.31 × 80,357.34
  4. Step 4: Simplify right side
    220,631.52x = 26,588,741,927.32
  5. Step 5: Solve for x
    x = 26,588,741,927.32/220,631.52
  6. Step 6: Final answer
    x = 120,511.98

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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.