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Finding the Fourth Proportional to 344,321.76, 515,371.60 and 177,880.80

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Solution

The fourth proportional to 344,321.76, 515,371.60 and 177,880.80 is: 266,247.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,321.76 : 515,371.60 = 177,880.80 : x
  2. Step 2: Convert to fraction form
    344,321.76/515,371.60 = 177,880.80/x
  3. Step 3: Cross multiply
    344,321.76x = 515,371.60 × 177,880.80
  4. Step 4: Simplify right side
    344,321.76x = 91,674,712,505.28
  5. Step 5: Solve for x
    x = 91,674,712,505.28/344,321.76
  6. Step 6: Final answer
    x = 266,247.22

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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.