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Finding the Fourth Proportional to 288,344.91, 397,908.27 and 159,280.60

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Solution

The fourth proportional to 288,344.91, 397,908.27 and 159,280.60 is: 219,802.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,344.91 : 397,908.27 = 159,280.60 : x
  2. Step 2: Convert to fraction form
    288,344.91/397,908.27 = 159,280.60/x
  3. Step 3: Cross multiply
    288,344.91x = 397,908.27 × 159,280.60
  4. Step 4: Simplify right side
    288,344.91x = 63,379,067,990.56
  5. Step 5: Solve for x
    x = 63,379,067,990.56/288,344.91
  6. Step 6: Final answer
    x = 219,802.97

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1.5x scale

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.