Home / 631,943.76-947,967.81-205,469.88

Finding the Fourth Proportional to 631,943.76, 947,967.81 and 205,469.88

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Solution

The fourth proportional to 631,943.76, 947,967.81 and 205,469.88 is: 308,221.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,943.76 : 947,967.81 = 205,469.88 : x
  2. Step 2: Convert to fraction form
    631,943.76/947,967.81 = 205,469.88/x
  3. Step 3: Cross multiply
    631,943.76x = 947,967.81 × 205,469.88
  4. Step 4: Simplify right side
    631,943.76x = 194,778,832,164.56
  5. Step 5: Solve for x
    x = 194,778,832,164.56/631,943.76
  6. Step 6: Final answer
    x = 308,221.78

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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.