Home / 351,948.96-485,511.36-222,670.56

Finding the Fourth Proportional to 351,948.96, 485,511.36 and 222,670.56

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Solution

The fourth proportional to 351,948.96, 485,511.36 and 222,670.56 is: 307,172.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,948.96 : 485,511.36 = 222,670.56 : x
  2. Step 2: Convert to fraction form
    351,948.96/485,511.36 = 222,670.56/x
  3. Step 3: Cross multiply
    351,948.96x = 485,511.36 × 222,670.56
  4. Step 4: Simplify right side
    351,948.96x = 108,109,086,417.56
  5. Step 5: Solve for x
    x = 108,109,086,417.56/351,948.96
  6. Step 6: Final answer
    x = 307,172.63

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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.