Home / 339,938.22-509,834.43-140,206.80

Finding the Fourth Proportional to 339,938.22, 509,834.43 and 140,206.80

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Solution

The fourth proportional to 339,938.22, 509,834.43 and 140,206.80 is: 210,280.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,938.22 : 509,834.43 = 140,206.80 : x
  2. Step 2: Convert to fraction form
    339,938.22/509,834.43 = 140,206.80/x
  3. Step 3: Cross multiply
    339,938.22x = 509,834.43 × 140,206.80
  4. Step 4: Simplify right side
    339,938.22x = 71,482,253,960.12
  5. Step 5: Solve for x
    x = 71,482,253,960.12/339,938.22
  6. Step 6: Final answer
    x = 210,280.13

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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.