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Finding the Fourth Proportional to 288,539.68, 398,205.36 and 159,475.39

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Solution

The fourth proportional to 288,539.68, 398,205.36 and 159,475.39 is: 220,087.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,539.68 : 398,205.36 = 159,475.39 : x
  2. Step 2: Convert to fraction form
    288,539.68/398,205.36 = 159,475.39/x
  3. Step 3: Cross multiply
    288,539.68x = 398,205.36 × 159,475.39
  4. Step 4: Simplify right side
    288,539.68x = 63,503,955,086.09
  5. Step 5: Solve for x
    x = 63,503,955,086.09/288,539.68
  6. Step 6: Final answer
    x = 220,087.42

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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.