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Finding the Fourth Proportional to 337,208.80, 505,813.20 and 87,890.80

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Solution

The fourth proportional to 337,208.80, 505,813.20 and 87,890.80 is: 131,836.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,208.80 : 505,813.20 = 87,890.80 : x
  2. Step 2: Convert to fraction form
    337,208.80/505,813.20 = 87,890.80/x
  3. Step 3: Cross multiply
    337,208.80x = 505,813.20 × 87,890.80
  4. Step 4: Simplify right side
    337,208.80x = 44,456,326,798.56
  5. Step 5: Solve for x
    x = 44,456,326,798.56/337,208.80
  6. Step 6: Final answer
    x = 131,836.20

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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.