Home / 320,209.92-480,297.57-162,434.27

Finding the Fourth Proportional to 320,209.92, 480,297.57 and 162,434.27

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Solution

The fourth proportional to 320,209.92, 480,297.57 and 162,434.27 is: 243,642.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,209.92 : 480,297.57 = 162,434.27 : x
  2. Step 2: Convert to fraction form
    320,209.92/480,297.57 = 162,434.27/x
  3. Step 3: Cross multiply
    320,209.92x = 480,297.57 × 162,434.27
  4. Step 4: Simplify right side
    320,209.92x = 78,016,785,757.34
  5. Step 5: Solve for x
    x = 78,016,785,757.34/320,209.92
  6. Step 6: Final answer
    x = 243,642.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.