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Finding the Fourth Proportional to 288,327.02, 397,889.71 and 159,274.38

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Solution

The fourth proportional to 288,327.02, 397,889.71 and 159,274.38 is: 219,797.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,327.02 : 397,889.71 = 159,274.38 : x
  2. Step 2: Convert to fraction form
    288,327.02/397,889.71 = 159,274.38/x
  3. Step 3: Cross multiply
    288,327.02x = 397,889.71 × 159,274.38
  4. Step 4: Simplify right side
    288,327.02x = 63,373,636,470.44
  5. Step 5: Solve for x
    x = 63,373,636,470.44/288,327.02
  6. Step 6: Final answer
    x = 219,797.77

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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.