Home / 219,890.40-329,835.60-164,121.90

Finding the Fourth Proportional to 219,890.40, 329,835.60 and 164,121.90

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Solution

The fourth proportional to 219,890.40, 329,835.60 and 164,121.90 is: 246,182.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,890.40 : 329,835.60 = 164,121.90 : x
  2. Step 2: Convert to fraction form
    219,890.40/329,835.60 = 164,121.90/x
  3. Step 3: Cross multiply
    219,890.40x = 329,835.60 × 164,121.90
  4. Step 4: Simplify right side
    219,890.40x = 54,133,245,359.64
  5. Step 5: Solve for x
    x = 54,133,245,359.64/219,890.40
  6. Step 6: Final answer
    x = 246,182.85

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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.