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Finding the Fourth Proportional to 288,327.13, 397,889.84 and 159,274.46

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Solution

The fourth proportional to 288,327.13, 397,889.84 and 159,274.46 is: 219,797.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,327.13 : 397,889.84 = 159,274.46 : x
  2. Step 2: Convert to fraction form
    288,327.13/397,889.84 = 159,274.46/x
  3. Step 3: Cross multiply
    288,327.13x = 397,889.84 × 159,274.46
  4. Step 4: Simplify right side
    288,327.13x = 63,373,690,798.40
  5. Step 5: Solve for x
    x = 63,373,690,798.40/288,327.13
  6. Step 6: Final answer
    x = 219,797.88

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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.