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Finding the Fourth Proportional to 268,908.30, 403,362.45 and 248,633.10

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Solution

The fourth proportional to 268,908.30, 403,362.45 and 248,633.10 is: 372,949.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,908.30 : 403,362.45 = 248,633.10 : x
  2. Step 2: Convert to fraction form
    268,908.30/403,362.45 = 248,633.10/x
  3. Step 3: Cross multiply
    268,908.30x = 403,362.45 × 248,633.10
  4. Step 4: Simplify right side
    268,908.30x = 100,289,256,367.10
  5. Step 5: Solve for x
    x = 100,289,256,367.10/268,908.30
  6. Step 6: Final answer
    x = 372,949.65

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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.