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Finding the Fourth Proportional to 279,211.37, 418,817.07 and 195,135.71

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Solution

The fourth proportional to 279,211.37, 418,817.07 and 195,135.71 is: 292,703.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,211.37 : 418,817.07 = 195,135.71 : x
  2. Step 2: Convert to fraction form
    279,211.37/418,817.07 = 195,135.71/x
  3. Step 3: Cross multiply
    279,211.37x = 418,817.07 × 195,135.71
  4. Step 4: Simplify right side
    279,211.37x = 81,726,164,220.48
  5. Step 5: Solve for x
    x = 81,726,164,220.48/279,211.37
  6. Step 6: Final answer
    x = 292,703.57

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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.