Home / 319,109.96-440,517.27-227,288.36

Finding the Fourth Proportional to 319,109.96, 440,517.27 and 227,288.36

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Solution

The fourth proportional to 319,109.96, 440,517.27 and 227,288.36 is: 313,761.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,109.96 : 440,517.27 = 227,288.36 : x
  2. Step 2: Convert to fraction form
    319,109.96/440,517.27 = 227,288.36/x
  3. Step 3: Cross multiply
    319,109.96x = 440,517.27 × 227,288.36
  4. Step 4: Simplify right side
    319,109.96x = 100,124,445,647.39
  5. Step 5: Solve for x
    x = 100,124,445,647.39/319,109.96
  6. Step 6: Final answer
    x = 313,761.59

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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.