Home / 279,253.38-385,367.91-151,929.54

Finding the Fourth Proportional to 279,253.38, 385,367.91 and 151,929.54

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Solution

The fourth proportional to 279,253.38, 385,367.91 and 151,929.54 is: 209,661.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,253.38 : 385,367.91 = 151,929.54 : x
  2. Step 2: Convert to fraction form
    279,253.38/385,367.91 = 151,929.54/x
  3. Step 3: Cross multiply
    279,253.38x = 385,367.91 × 151,929.54
  4. Step 4: Simplify right side
    279,253.38x = 58,548,769,297.06
  5. Step 5: Solve for x
    x = 58,548,769,297.06/279,253.38
  6. Step 6: Final answer
    x = 209,661.81

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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.