Home / 424,811.80-636,180.90-202,936.60

Finding the Fourth Proportional to 424,811.80, 636,180.90 and 202,936.60

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Solution

The fourth proportional to 424,811.80, 636,180.90 and 202,936.60 is: 303,909.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,811.80 : 636,180.90 = 202,936.60 : x
  2. Step 2: Convert to fraction form
    424,811.80/636,180.90 = 202,936.60/x
  3. Step 3: Cross multiply
    424,811.80x = 636,180.90 × 202,936.60
  4. Step 4: Simplify right side
    424,811.80x = 129,104,388,830.94
  5. Step 5: Solve for x
    x = 129,104,388,830.94/424,811.80
  6. Step 6: Final answer
    x = 303,909.61

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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.