Home / 251,528.28-347,101.79-138,351.03

Finding the Fourth Proportional to 251,528.28, 347,101.79 and 138,351.03

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Solution

The fourth proportional to 251,528.28, 347,101.79 and 138,351.03 is: 190,920.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,528.28 : 347,101.79 = 138,351.03 : x
  2. Step 2: Convert to fraction form
    251,528.28/347,101.79 = 138,351.03/x
  3. Step 3: Cross multiply
    251,528.28x = 347,101.79 × 138,351.03
  4. Step 4: Simplify right side
    251,528.28x = 48,021,889,469.59
  5. Step 5: Solve for x
    x = 48,021,889,469.59/251,528.28
  6. Step 6: Final answer
    x = 190,920.44

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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.