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Finding the Fourth Proportional to 377,195.49, 520,513.92 and 213,862.98

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Solution

The fourth proportional to 377,195.49, 520,513.92 and 213,862.98 is: 295,121.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,195.49 : 520,513.92 = 213,862.98 : x
  2. Step 2: Convert to fraction form
    377,195.49/520,513.92 = 213,862.98/x
  3. Step 3: Cross multiply
    377,195.49x = 520,513.92 × 213,862.98
  4. Step 4: Simplify right side
    377,195.49x = 111,318,658,062.68
  5. Step 5: Solve for x
    x = 111,318,658,062.68/377,195.49
  6. Step 6: Final answer
    x = 295,121.92

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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.