Home / 219,972.30-330,359.40-192,416.10

Finding the Fourth Proportional to 219,972.30, 330,359.40 and 192,416.10

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Solution

The fourth proportional to 219,972.30, 330,359.40 and 192,416.10 is: 288,974.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,972.30 : 330,359.40 = 192,416.10 : x
  2. Step 2: Convert to fraction form
    219,972.30/330,359.40 = 192,416.10/x
  3. Step 3: Cross multiply
    219,972.30x = 330,359.40 × 192,416.10
  4. Step 4: Simplify right side
    219,972.30x = 63,566,467,346.34
  5. Step 5: Solve for x
    x = 63,566,467,346.34/219,972.30
  6. Step 6: Final answer
    x = 288,974.87

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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.