Home / 319,115.90-440,525.46-227,294.30

Finding the Fourth Proportional to 319,115.90, 440,525.46 and 227,294.30

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Solution

The fourth proportional to 319,115.90, 440,525.46 and 227,294.30 is: 313,769.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,115.90 : 440,525.46 = 227,294.30 : x
  2. Step 2: Convert to fraction form
    319,115.90/440,525.46 = 227,294.30/x
  3. Step 3: Cross multiply
    319,115.90x = 440,525.46 × 227,294.30
  4. Step 4: Simplify right side
    319,115.90x = 100,128,926,062.88
  5. Step 5: Solve for x
    x = 100,128,926,062.88/319,115.90
  6. Step 6: Final answer
    x = 313,769.78

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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.