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Finding the Fourth Proportional to 295,633.60, 442,940.10 and 137,537.80

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Solution

The fourth proportional to 295,633.60, 442,940.10 and 137,537.80 is: 206,069.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,633.60 : 442,940.10 = 137,537.80 : x
  2. Step 2: Convert to fraction form
    295,633.60/442,940.10 = 137,537.80/x
  3. Step 3: Cross multiply
    295,633.60x = 442,940.10 × 137,537.80
  4. Step 4: Simplify right side
    295,633.60x = 60,921,006,885.78
  5. Step 5: Solve for x
    x = 60,921,006,885.78/295,633.60
  6. Step 6: Final answer
    x = 206,069.29

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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.