Home / 231,728.28-319,929.48-177,906.12

Finding the Fourth Proportional to 231,728.28, 319,929.48 and 177,906.12

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Solution

The fourth proportional to 231,728.28, 319,929.48 and 177,906.12 is: 245,621.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,728.28 : 319,929.48 = 177,906.12 : x
  2. Step 2: Convert to fraction form
    231,728.28/319,929.48 = 177,906.12/x
  3. Step 3: Cross multiply
    231,728.28x = 319,929.48 × 177,906.12
  4. Step 4: Simplify right side
    231,728.28x = 56,917,412,460.42
  5. Step 5: Solve for x
    x = 56,917,412,460.42/231,728.28
  6. Step 6: Final answer
    x = 245,621.35

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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.