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Finding the Fourth Proportional to 395,370.95, 545,611.08 and 214,082.82

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Solution

The fourth proportional to 395,370.95, 545,611.08 and 214,082.82 is: 295,433.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,370.95 : 545,611.08 = 214,082.82 : x
  2. Step 2: Convert to fraction form
    395,370.95/545,611.08 = 214,082.82/x
  3. Step 3: Cross multiply
    395,370.95x = 545,611.08 × 214,082.82
  4. Step 4: Simplify right side
    395,370.95x = 116,805,958,629.65
  5. Step 5: Solve for x
    x = 116,805,958,629.65/395,370.95
  6. Step 6: Final answer
    x = 295,433.85

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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.