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Finding the Fourth Proportional to 288,903.24, 398,843.19 and 174,202.38

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Solution

The fourth proportional to 288,903.24, 398,843.19 and 174,202.38 is: 240,493.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,903.24 : 398,843.19 = 174,202.38 : x
  2. Step 2: Convert to fraction form
    288,903.24/398,843.19 = 174,202.38/x
  3. Step 3: Cross multiply
    288,903.24x = 398,843.19 × 174,202.38
  4. Step 4: Simplify right side
    288,903.24x = 69,479,432,944.79
  5. Step 5: Solve for x
    x = 69,479,432,944.79/288,903.24
  6. Step 6: Final answer
    x = 240,493.78

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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.