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Finding the Fourth Proportional to 268,806.62, 403,159.70 and 108,840.26

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Solution

The fourth proportional to 268,806.62, 403,159.70 and 108,840.26 is: 163,240.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,806.62 : 403,159.70 = 108,840.26 : x
  2. Step 2: Convert to fraction form
    268,806.62/403,159.70 = 108,840.26/x
  3. Step 3: Cross multiply
    268,806.62x = 403,159.70 × 108,840.26
  4. Step 4: Simplify right side
    268,806.62x = 43,880,007,849.52
  5. Step 5: Solve for x
    x = 43,880,007,849.52/268,806.62
  6. Step 6: Final answer
    x = 163,240.06

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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.