Home / 403,433.55-556,733.79-222,141.78

Finding the Fourth Proportional to 403,433.55, 556,733.79 and 222,141.78

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Solution

The fourth proportional to 403,433.55, 556,733.79 and 222,141.78 is: 306,553.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,433.55 : 556,733.79 = 222,141.78 : x
  2. Step 2: Convert to fraction form
    403,433.55/556,733.79 = 222,141.78/x
  3. Step 3: Cross multiply
    403,433.55x = 556,733.79 × 222,141.78
  4. Step 4: Simplify right side
    403,433.55x = 123,673,835,096.75
  5. Step 5: Solve for x
    x = 123,673,835,096.75/403,433.55
  6. Step 6: Final answer
    x = 306,553.17

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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.