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Finding the Fourth Proportional to 337,362.40, 505,978.80 and 100,712.80

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Solution

The fourth proportional to 337,362.40, 505,978.80 and 100,712.80 is: 151,049.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,362.40 : 505,978.80 = 100,712.80 : x
  2. Step 2: Convert to fraction form
    337,362.40/505,978.80 = 100,712.80/x
  3. Step 3: Cross multiply
    337,362.40x = 505,978.80 × 100,712.80
  4. Step 4: Simplify right side
    337,362.40x = 50,958,541,688.64
  5. Step 5: Solve for x
    x = 50,958,541,688.64/337,362.40
  6. Step 6: Final answer
    x = 151,049.86

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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.