Home / 320,717.64-442,583.76-177,469.20

Finding the Fourth Proportional to 320,717.64, 442,583.76 and 177,469.20

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Solution

The fourth proportional to 320,717.64, 442,583.76 and 177,469.20 is: 244,903.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,717.64 : 442,583.76 = 177,469.20 : x
  2. Step 2: Convert to fraction form
    320,717.64/442,583.76 = 177,469.20/x
  3. Step 3: Cross multiply
    320,717.64x = 442,583.76 × 177,469.20
  4. Step 4: Simplify right side
    320,717.64x = 78,544,985,820.19
  5. Step 5: Solve for x
    x = 78,544,985,820.19/320,717.64
  6. Step 6: Final answer
    x = 244,903.85

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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.