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Finding the Fourth Proportional to 377,103.31, 520,391.61 and 213,774.96

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Solution

The fourth proportional to 377,103.31, 520,391.61 and 213,774.96 is: 295,003.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,103.31 : 520,391.61 = 213,774.96 : x
  2. Step 2: Convert to fraction form
    377,103.31/520,391.61 = 213,774.96/x
  3. Step 3: Cross multiply
    377,103.31x = 520,391.61 × 213,774.96
  4. Step 4: Simplify right side
    377,103.31x = 111,246,695,612.09
  5. Step 5: Solve for x
    x = 111,246,695,612.09/377,103.31
  6. Step 6: Final answer
    x = 295,003.23

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1.5x scale

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.