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Finding the Fourth Proportional to 279,746.54, 419,122.32 and 161,172.92

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Solution

The fourth proportional to 279,746.54, 419,122.32 and 161,172.92 is: 241,472.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,746.54 : 419,122.32 = 161,172.92 : x
  2. Step 2: Convert to fraction form
    279,746.54/419,122.32 = 161,172.92/x
  3. Step 3: Cross multiply
    279,746.54x = 419,122.32 × 161,172.92
  4. Step 4: Simplify right side
    279,746.54x = 67,551,168,151.57
  5. Step 5: Solve for x
    x = 67,551,168,151.57/279,746.54
  6. Step 6: Final answer
    x = 241,472.76

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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.