Home / 319,109.46-440,516.57-227,287.86

Finding the Fourth Proportional to 319,109.46, 440,516.57 and 227,287.86

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Solution

The fourth proportional to 319,109.46, 440,516.57 and 227,287.86 is: 313,760.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,109.46 : 440,516.57 = 227,287.86 : x
  2. Step 2: Convert to fraction form
    319,109.46/440,516.57 = 227,287.86/x
  3. Step 3: Cross multiply
    319,109.46x = 440,516.57 × 227,287.86
  4. Step 4: Simplify right side
    319,109.46x = 100,124,068,489.84
  5. Step 5: Solve for x
    x = 100,124,068,489.84/319,109.46
  6. Step 6: Final answer
    x = 313,760.89

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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.