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Finding the Fourth Proportional to 288,759.54, 433,213.12 and 111,218.88

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Solution

The fourth proportional to 288,759.54, 433,213.12 and 111,218.88 is: 166,856.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,759.54 : 433,213.12 = 111,218.88 : x
  2. Step 2: Convert to fraction form
    288,759.54/433,213.12 = 111,218.88/x
  3. Step 3: Cross multiply
    288,759.54x = 433,213.12 × 111,218.88
  4. Step 4: Simplify right side
    288,759.54x = 48,181,478,007.71
  5. Step 5: Solve for x
    x = 48,181,478,007.71/288,759.54
  6. Step 6: Final answer
    x = 166,856.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.