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Finding the Fourth Proportional to 484,912.50, 727,351.74 and 147,939.54

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Solution

The fourth proportional to 484,912.50, 727,351.74 and 147,939.54 is: 221,904.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,912.50 : 727,351.74 = 147,939.54 : x
  2. Step 2: Convert to fraction form
    484,912.50/727,351.74 = 147,939.54/x
  3. Step 3: Cross multiply
    484,912.50x = 727,351.74 × 147,939.54
  4. Step 4: Simplify right side
    484,912.50x = 107,604,081,833.80
  5. Step 5: Solve for x
    x = 107,604,081,833.80/484,912.50
  6. Step 6: Final answer
    x = 221,904.12

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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.