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Finding the Fourth Proportional to 356,992.21, 534,759.31 and 199,304.65

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Solution

The fourth proportional to 356,992.21, 534,759.31 and 199,304.65 is: 298,549.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,992.21 : 534,759.31 = 199,304.65 : x
  2. Step 2: Convert to fraction form
    356,992.21/534,759.31 = 199,304.65/x
  3. Step 3: Cross multiply
    356,992.21x = 534,759.31 × 199,304.65
  4. Step 4: Simplify right side
    356,992.21x = 106,580,017,113.79
  5. Step 5: Solve for x
    x = 106,580,017,113.79/356,992.21
  6. Step 6: Final answer
    x = 298,549.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.