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Finding the Fourth Proportional to 239,906.24, 357,919.60 and 215,992.88

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Solution

The fourth proportional to 239,906.24, 357,919.60 and 215,992.88 is: 322,242.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,906.24 : 357,919.60 = 215,992.88 : x
  2. Step 2: Convert to fraction form
    239,906.24/357,919.60 = 215,992.88/x
  3. Step 3: Cross multiply
    239,906.24x = 357,919.60 × 215,992.88
  4. Step 4: Simplify right side
    239,906.24x = 77,308,085,212.45
  5. Step 5: Solve for x
    x = 77,308,085,212.45/239,906.24
  6. Step 6: Final answer
    x = 322,242.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.