Home / 320,914.16-442,865.04-177,676.76

Finding the Fourth Proportional to 320,914.16, 442,865.04 and 177,676.76

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Solution

The fourth proportional to 320,914.16, 442,865.04 and 177,676.76 is: 245,195.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,914.16 : 442,865.04 = 177,676.76 : x
  2. Step 2: Convert to fraction form
    320,914.16/442,865.04 = 177,676.76/x
  3. Step 3: Cross multiply
    320,914.16x = 442,865.04 × 177,676.76
  4. Step 4: Simplify right side
    320,914.16x = 78,686,825,424.47
  5. Step 5: Solve for x
    x = 78,686,825,424.47/320,914.16
  6. Step 6: Final answer
    x = 245,195.87

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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.