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Finding the Fourth Proportional to 345,073.50, 476,211.94 and 187,919.75

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Solution

The fourth proportional to 345,073.50, 476,211.94 and 187,919.75 is: 259,334.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,073.50 : 476,211.94 = 187,919.75 : x
  2. Step 2: Convert to fraction form
    345,073.50/476,211.94 = 187,919.75/x
  3. Step 3: Cross multiply
    345,073.50x = 476,211.94 × 187,919.75
  4. Step 4: Simplify right side
    345,073.50x = 89,489,629,432.55
  5. Step 5: Solve for x
    x = 89,489,629,432.55/345,073.50
  6. Step 6: Final answer
    x = 259,334.98

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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.