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Finding the Fourth Proportional to 279,265.17, 385,380.14 and 151,941.27

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Solution

The fourth proportional to 279,265.17, 385,380.14 and 151,941.27 is: 209,675.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,265.17 : 385,380.14 = 151,941.27 : x
  2. Step 2: Convert to fraction form
    279,265.17/385,380.14 = 151,941.27/x
  3. Step 3: Cross multiply
    279,265.17x = 385,380.14 × 151,941.27
  4. Step 4: Simplify right side
    279,265.17x = 58,555,147,144.67
  5. Step 5: Solve for x
    x = 58,555,147,144.67/279,265.17
  6. Step 6: Final answer
    x = 209,675.80

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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.