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Finding the Fourth Proportional to 403,449.79, 556,738.68 and 222,127.33

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Solution

The fourth proportional to 403,449.79, 556,738.68 and 222,127.33 is: 306,523.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,449.79 : 556,738.68 = 222,127.33 : x
  2. Step 2: Convert to fraction form
    403,449.79/556,738.68 = 222,127.33/x
  3. Step 3: Cross multiply
    403,449.79x = 556,738.68 × 222,127.33
  4. Step 4: Simplify right side
    403,449.79x = 123,666,876,496.12
  5. Step 5: Solve for x
    x = 123,666,876,496.12/403,449.79
  6. Step 6: Final answer
    x = 306,523.59

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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.