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Finding the Fourth Proportional to 344,584.80, 515,840.40 and 303,112.80

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Solution

The fourth proportional to 344,584.80, 515,840.40 and 303,112.80 is: 453,757.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,584.80 : 515,840.40 = 303,112.80 : x
  2. Step 2: Convert to fraction form
    344,584.80/515,840.40 = 303,112.80/x
  3. Step 3: Cross multiply
    344,584.80x = 515,840.40 × 303,112.80
  4. Step 4: Simplify right side
    344,584.80x = 156,357,827,997.12
  5. Step 5: Solve for x
    x = 156,357,827,997.12/344,584.80
  6. Step 6: Final answer
    x = 453,757.18

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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.