Home / 327,123.71-489,898.23-221,622.83

Finding the Fourth Proportional to 327,123.71, 489,898.23 and 221,622.83

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Solution

The fourth proportional to 327,123.71, 489,898.23 and 221,622.83 is: 331,900.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,123.71 : 489,898.23 = 221,622.83 : x
  2. Step 2: Convert to fraction form
    327,123.71/489,898.23 = 221,622.83/x
  3. Step 3: Cross multiply
    327,123.71x = 489,898.23 × 221,622.83
  4. Step 4: Simplify right side
    327,123.71x = 108,572,632,538.25
  5. Step 5: Solve for x
    x = 108,572,632,538.25/327,123.71
  6. Step 6: Final answer
    x = 331,900.83

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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.