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Finding the Fourth Proportional to 268,668, 370,761.83 and 147,806.69

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Solution

The fourth proportional to 268,668, 370,761.83 and 147,806.69 is: 203,973.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,668 : 370,761.83 = 147,806.69 : x
  2. Step 2: Convert to fraction form
    268,668/370,761.83 = 147,806.69/x
  3. Step 3: Cross multiply
    268,668x = 370,761.83 × 147,806.69
  4. Step 4: Simplify right side
    268,668x = 54,801,078,870.64
  5. Step 5: Solve for x
    x = 54,801,078,870.64/268,668
  6. Step 6: Final answer
    x = 203,973.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.