Home / 424,231.80-636,347.70-187,452.60

Finding the Fourth Proportional to 424,231.80, 636,347.70 and 187,452.60

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Solution

The fourth proportional to 424,231.80, 636,347.70 and 187,452.60 is: 281,178.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,231.80 : 636,347.70 = 187,452.60 : x
  2. Step 2: Convert to fraction form
    424,231.80/636,347.70 = 187,452.60/x
  3. Step 3: Cross multiply
    424,231.80x = 636,347.70 × 187,452.60
  4. Step 4: Simplify right side
    424,231.80x = 119,285,030,869.02
  5. Step 5: Solve for x
    x = 119,285,030,869.02/424,231.80
  6. Step 6: Final answer
    x = 281,178.90

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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.