Home / 401,504.05-554,091.09-220,223.62

Finding the Fourth Proportional to 401,504.05, 554,091.09 and 220,223.62

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Solution

The fourth proportional to 401,504.05, 554,091.09 and 220,223.62 is: 303,917.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,504.05 : 554,091.09 = 220,223.62 : x
  2. Step 2: Convert to fraction form
    401,504.05/554,091.09 = 220,223.62/x
  3. Step 3: Cross multiply
    401,504.05x = 554,091.09 × 220,223.62
  4. Step 4: Simplify right side
    401,504.05x = 122,023,945,649.55
  5. Step 5: Solve for x
    x = 122,023,945,649.55/401,504.05
  6. Step 6: Final answer
    x = 303,917.10

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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.