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Finding the Fourth Proportional to 352,856, 486,941.28 and 193,880

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Solution

The fourth proportional to 352,856, 486,941.28 and 193,880 is: 267,554.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,856 : 486,941.28 = 193,880 : x
  2. Step 2: Convert to fraction form
    352,856/486,941.28 = 193,880/x
  3. Step 3: Cross multiply
    352,856x = 486,941.28 × 193,880
  4. Step 4: Simplify right side
    352,856x = 94,408,175,366.40
  5. Step 5: Solve for x
    x = 94,408,175,366.40/352,856
  6. Step 6: Final answer
    x = 267,554.40

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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.