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Finding the Fourth Proportional to 268,240.73, 402,298.68 and 99,840.37

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Solution

The fourth proportional to 268,240.73, 402,298.68 and 99,840.37 is: 149,737.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,240.73 : 402,298.68 = 99,840.37 : x
  2. Step 2: Convert to fraction form
    268,240.73/402,298.68 = 99,840.37/x
  3. Step 3: Cross multiply
    268,240.73x = 402,298.68 × 99,840.37
  4. Step 4: Simplify right side
    268,240.73x = 40,165,647,806.36
  5. Step 5: Solve for x
    x = 40,165,647,806.36/268,240.73
  6. Step 6: Final answer
    x = 149,737.32

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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.