Home / 320,608.48-442,415.32-177,365.45

Finding the Fourth Proportional to 320,608.48, 442,415.32 and 177,365.45

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Solution

The fourth proportional to 320,608.48, 442,415.32 and 177,365.45 is: 244,750.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,608.48 : 442,415.32 = 177,365.45 : x
  2. Step 2: Convert to fraction form
    320,608.48/442,415.32 = 177,365.45/x
  3. Step 3: Cross multiply
    320,608.48x = 442,415.32 × 177,365.45
  4. Step 4: Simplify right side
    320,608.48x = 78,469,189,219.79
  5. Step 5: Solve for x
    x = 78,469,189,219.79/320,608.48
  6. Step 6: Final answer
    x = 244,750.82

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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.