Home / 231,219.36-319,076.01-129,245.02

Finding the Fourth Proportional to 231,219.36, 319,076.01 and 129,245.02

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Solution

The fourth proportional to 231,219.36, 319,076.01 and 129,245.02 is: 178,354.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,219.36 : 319,076.01 = 129,245.02 : x
  2. Step 2: Convert to fraction form
    231,219.36/319,076.01 = 129,245.02/x
  3. Step 3: Cross multiply
    231,219.36x = 319,076.01 × 129,245.02
  4. Step 4: Simplify right side
    231,219.36x = 41,238,984,496.28
  5. Step 5: Solve for x
    x = 41,238,984,496.28/231,219.36
  6. Step 6: Final answer
    x = 178,354.38

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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.