Home / 320,349.78-442,091.93-177,119.07

Finding the Fourth Proportional to 320,349.78, 442,091.93 and 177,119.07

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Solution

The fourth proportional to 320,349.78, 442,091.93 and 177,119.07 is: 244,429.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,349.78 : 442,091.93 = 177,119.07 : x
  2. Step 2: Convert to fraction form
    320,349.78/442,091.93 = 177,119.07/x
  3. Step 3: Cross multiply
    320,349.78x = 442,091.93 × 177,119.07
  4. Step 4: Simplify right side
    320,349.78x = 78,302,910,610.51
  5. Step 5: Solve for x
    x = 78,302,910,610.51/320,349.78
  6. Step 6: Final answer
    x = 244,429.42

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1.5x scale

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.