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Finding the Fourth Proportional to 342,668.44, 472,816.82 and 221,792.95

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Solution

The fourth proportional to 342,668.44, 472,816.82 and 221,792.95 is: 306,031.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,668.44 : 472,816.82 = 221,792.95 : x
  2. Step 2: Convert to fraction form
    342,668.44/472,816.82 = 221,792.95/x
  3. Step 3: Cross multiply
    342,668.44x = 472,816.82 × 221,792.95
  4. Step 4: Simplify right side
    342,668.44x = 104,867,436,689.86
  5. Step 5: Solve for x
    x = 104,867,436,689.86/342,668.44
  6. Step 6: Final answer
    x = 306,031.79

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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.