Home / 400,104.36-552,121.68-218,780.28

Finding the Fourth Proportional to 400,104.36, 552,121.68 and 218,780.28

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Solution

The fourth proportional to 400,104.36, 552,121.68 and 218,780.28 is: 301,904.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,104.36 : 552,121.68 = 218,780.28 : x
  2. Step 2: Convert to fraction form
    400,104.36/552,121.68 = 218,780.28/x
  3. Step 3: Cross multiply
    400,104.36x = 552,121.68 × 218,780.28
  4. Step 4: Simplify right side
    400,104.36x = 120,793,335,744.47
  5. Step 5: Solve for x
    x = 120,793,335,744.47/400,104.36
  6. Step 6: Final answer
    x = 301,904.57

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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.