Home / 377,639.70-521,100.03-222,580.86

Finding the Fourth Proportional to 377,639.70, 521,100.03 and 222,580.86

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Solution

The fourth proportional to 377,639.70, 521,100.03 and 222,580.86 is: 307,136.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,639.70 : 521,100.03 = 222,580.86 : x
  2. Step 2: Convert to fraction form
    377,639.70/521,100.03 = 222,580.86/x
  3. Step 3: Cross multiply
    377,639.70x = 521,100.03 × 222,580.86
  4. Step 4: Simplify right side
    377,639.70x = 115,986,892,823.43
  5. Step 5: Solve for x
    x = 115,986,892,823.43/377,639.70
  6. Step 6: Final answer
    x = 307,136.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.