Home / 279,269.82-385,384.77-151,942.68

Finding the Fourth Proportional to 279,269.82, 385,384.77 and 151,942.68

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Solution

The fourth proportional to 279,269.82, 385,384.77 and 151,942.68 is: 209,676.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,269.82 : 385,384.77 = 151,942.68 : x
  2. Step 2: Convert to fraction form
    279,269.82/385,384.77 = 151,942.68/x
  3. Step 3: Cross multiply
    279,269.82x = 385,384.77 × 151,942.68
  4. Step 4: Simplify right side
    279,269.82x = 58,556,394,784.98
  5. Step 5: Solve for x
    x = 58,556,394,784.98/279,269.82
  6. Step 6: Final answer
    x = 209,676.77

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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.