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Finding the Fourth Proportional to 288,538.68, 398,203.98 and 159,474.39

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Solution

The fourth proportional to 288,538.68, 398,203.98 and 159,474.39 is: 220,086.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,538.68 : 398,203.98 = 159,474.39 : x
  2. Step 2: Convert to fraction form
    288,538.68/398,203.98 = 159,474.39/x
  3. Step 3: Cross multiply
    288,538.68x = 398,203.98 × 159,474.39
  4. Step 4: Simplify right side
    288,538.68x = 63,503,336,806.07
  5. Step 5: Solve for x
    x = 63,503,336,806.07/288,538.68
  6. Step 6: Final answer
    x = 220,086.04

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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.