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Finding the Fourth Proportional to 272,927.70, 409,391.55 and 193,211.55

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Solution

The fourth proportional to 272,927.70, 409,391.55 and 193,211.55 is: 289,817.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,927.70 : 409,391.55 = 193,211.55 : x
  2. Step 2: Convert to fraction form
    272,927.70/409,391.55 = 193,211.55/x
  3. Step 3: Cross multiply
    272,927.70x = 409,391.55 × 193,211.55
  4. Step 4: Simplify right side
    272,927.70x = 79,099,175,932.40
  5. Step 5: Solve for x
    x = 79,099,175,932.40/272,927.70
  6. Step 6: Final answer
    x = 289,817.33

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1.5x scale

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.