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Finding the Fourth Proportional to 288,694.86, 398,382.77 and 159,625.86

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Solution

The fourth proportional to 288,694.86, 398,382.77 and 159,625.86 is: 220,274.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,694.86 : 398,382.77 = 159,625.86 : x
  2. Step 2: Convert to fraction form
    288,694.86/398,382.77 = 159,625.86/x
  3. Step 3: Cross multiply
    288,694.86x = 398,382.77 × 159,625.86
  4. Step 4: Simplify right side
    288,694.86x = 63,592,191,472.30
  5. Step 5: Solve for x
    x = 63,592,191,472.30/288,694.86
  6. Step 6: Final answer
    x = 220,274.76

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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.