Home / 426,274.80-639,176.70-268,164.96

Finding the Fourth Proportional to 426,274.80, 639,176.70 and 268,164.96

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Solution

The fourth proportional to 426,274.80, 639,176.70 and 268,164.96 is: 402,099.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,274.80 : 639,176.70 = 268,164.96 : x
  2. Step 2: Convert to fraction form
    426,274.80/639,176.70 = 268,164.96/x
  3. Step 3: Cross multiply
    426,274.80x = 639,176.70 × 268,164.96
  4. Step 4: Simplify right side
    426,274.80x = 171,404,794,188.43
  5. Step 5: Solve for x
    x = 171,404,794,188.43/426,274.80
  6. Step 6: Final answer
    x = 402,099.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.