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Finding the Fourth Proportional to 377,391.69, 520,797.47 and 214,079.22

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Solution

The fourth proportional to 377,391.69, 520,797.47 and 214,079.22 is: 295,427.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,391.69 : 520,797.47 = 214,079.22 : x
  2. Step 2: Convert to fraction form
    377,391.69/520,797.47 = 214,079.22/x
  3. Step 3: Cross multiply
    377,391.69x = 520,797.47 × 214,079.22
  4. Step 4: Simplify right side
    377,391.69x = 111,491,915,085.18
  5. Step 5: Solve for x
    x = 111,491,915,085.18/377,391.69
  6. Step 6: Final answer
    x = 295,427.58

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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.