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Finding the Fourth Proportional to 421,622.38, 631,420.19 and 241,160.71

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Solution

The fourth proportional to 421,622.38, 631,420.19 and 241,160.71 is: 361,161.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,622.38 : 631,420.19 = 241,160.71 : x
  2. Step 2: Convert to fraction form
    421,622.38/631,420.19 = 241,160.71/x
  3. Step 3: Cross multiply
    421,622.38x = 631,420.19 × 241,160.71
  4. Step 4: Simplify right side
    421,622.38x = 152,273,737,568.73
  5. Step 5: Solve for x
    x = 152,273,737,568.73/421,622.38
  6. Step 6: Final answer
    x = 361,161.42

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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.