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Finding the Fourth Proportional to 355,003.98, 489,909.52 and 193,860.96

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Solution

The fourth proportional to 355,003.98, 489,909.52 and 193,860.96 is: 267,530.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,003.98 : 489,909.52 = 193,860.96 : x
  2. Step 2: Convert to fraction form
    355,003.98/489,909.52 = 193,860.96/x
  3. Step 3: Cross multiply
    355,003.98x = 489,909.52 × 193,860.96
  4. Step 4: Simplify right side
    355,003.98x = 94,974,329,860.34
  5. Step 5: Solve for x
    x = 94,974,329,860.34/355,003.98
  6. Step 6: Final answer
    x = 267,530.32

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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.