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Finding the Fourth Proportional to 266,728.71, 368,219.48 and 206,162.48

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Solution

The fourth proportional to 266,728.71, 368,219.48 and 206,162.48 is: 284,607.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,728.71 : 368,219.48 = 206,162.48 : x
  2. Step 2: Convert to fraction form
    266,728.71/368,219.48 = 206,162.48/x
  3. Step 3: Cross multiply
    266,728.71x = 368,219.48 × 206,162.48
  4. Step 4: Simplify right side
    266,728.71x = 75,913,041,070.85
  5. Step 5: Solve for x
    x = 75,913,041,070.85/266,728.71
  6. Step 6: Final answer
    x = 284,607.68

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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.