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Finding the Fourth Proportional to 248,964.74, 373,255.70 and 128,892.97

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Solution

The fourth proportional to 248,964.74, 373,255.70 and 128,892.97 is: 193,240.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,964.74 : 373,255.70 = 128,892.97 : x
  2. Step 2: Convert to fraction form
    248,964.74/373,255.70 = 128,892.97/x
  3. Step 3: Cross multiply
    248,964.74x = 373,255.70 × 128,892.97
  4. Step 4: Simplify right side
    248,964.74x = 48,110,035,564.53
  5. Step 5: Solve for x
    x = 48,110,035,564.53/248,964.74
  6. Step 6: Final answer
    x = 193,240.36

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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.