Home / 426,181.04-639,105.36-159,796.40

Finding the Fourth Proportional to 426,181.04, 639,105.36 and 159,796.40

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Solution

The fourth proportional to 426,181.04, 639,105.36 and 159,796.40 is: 239,632.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,181.04 : 639,105.36 = 159,796.40 : x
  2. Step 2: Convert to fraction form
    426,181.04/639,105.36 = 159,796.40/x
  3. Step 3: Cross multiply
    426,181.04x = 639,105.36 × 159,796.40
  4. Step 4: Simplify right side
    426,181.04x = 102,126,735,748.70
  5. Step 5: Solve for x
    x = 102,126,735,748.70/426,181.04
  6. Step 6: Final answer
    x = 239,632.28

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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.