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Finding the Fourth Proportional to 377,585.85, 520,950.45 and 214,215.12

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Solution

The fourth proportional to 377,585.85, 520,950.45 and 214,215.12 is: 295,549.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,585.85 : 520,950.45 = 214,215.12 : x
  2. Step 2: Convert to fraction form
    377,585.85/520,950.45 = 214,215.12/x
  3. Step 3: Cross multiply
    377,585.85x = 520,950.45 × 214,215.12
  4. Step 4: Simplify right side
    377,585.85x = 111,595,463,160.80
  5. Step 5: Solve for x
    x = 111,595,463,160.80/377,585.85
  6. Step 6: Final answer
    x = 295,549.91

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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.