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Finding the Fourth Proportional to 268,940.35, 403,410.53 and 239,909.95

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Solution

The fourth proportional to 268,940.35, 403,410.53 and 239,909.95 is: 359,864.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,940.35 : 403,410.53 = 239,909.95 : x
  2. Step 2: Convert to fraction form
    268,940.35/403,410.53 = 239,909.95/x
  3. Step 3: Cross multiply
    268,940.35x = 403,410.53 × 239,909.95
  4. Step 4: Simplify right side
    268,940.35x = 96,782,198,882.22
  5. Step 5: Solve for x
    x = 96,782,198,882.22/268,940.35
  6. Step 6: Final answer
    x = 359,864.93

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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.