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Finding the Fourth Proportional to 358,254, 494,110.68 and 222,211.68

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Solution

The fourth proportional to 358,254, 494,110.68 and 222,211.68 is: 306,478.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,254 : 494,110.68 = 222,211.68 : x
  2. Step 2: Convert to fraction form
    358,254/494,110.68 = 222,211.68/x
  3. Step 3: Cross multiply
    358,254x = 494,110.68 × 222,211.68
  4. Step 4: Simplify right side
    358,254x = 109,797,164,308.74
  5. Step 5: Solve for x
    x = 109,797,164,308.74/358,254
  6. Step 6: Final answer
    x = 306,478.54

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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.