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Finding the Fourth Proportional to 337,136.31, 505,740 and 112,418.40

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Solution

The fourth proportional to 337,136.31, 505,740 and 112,418.40 is: 168,639.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,136.31 : 505,740 = 112,418.40 : x
  2. Step 2: Convert to fraction form
    337,136.31/505,740 = 112,418.40/x
  3. Step 3: Cross multiply
    337,136.31x = 505,740 × 112,418.40
  4. Step 4: Simplify right side
    337,136.31x = 56,854,481,616
  5. Step 5: Solve for x
    x = 56,854,481,616/337,136.31
  6. Step 6: Final answer
    x = 168,639.45

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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.