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Finding the Fourth Proportional to 344,822.80, 517,234.20 and 266,090.80

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Solution

The fourth proportional to 344,822.80, 517,234.20 and 266,090.80 is: 399,136.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,822.80 : 517,234.20 = 266,090.80 : x
  2. Step 2: Convert to fraction form
    344,822.80/517,234.20 = 266,090.80/x
  3. Step 3: Cross multiply
    344,822.80x = 517,234.20 × 266,090.80
  4. Step 4: Simplify right side
    344,822.80x = 137,631,262,065.36
  5. Step 5: Solve for x
    x = 137,631,262,065.36/344,822.80
  6. Step 6: Final answer
    x = 399,136.20

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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.