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Finding the Fourth Proportional to 336,136.78, 463,958.31 and 198,436.78

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Solution

The fourth proportional to 336,136.78, 463,958.31 and 198,436.78 is: 273,895.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,136.78 : 463,958.31 = 198,436.78 : x
  2. Step 2: Convert to fraction form
    336,136.78/463,958.31 = 198,436.78/x
  3. Step 3: Cross multiply
    336,136.78x = 463,958.31 × 198,436.78
  4. Step 4: Simplify right side
    336,136.78x = 92,066,393,090.64
  5. Step 5: Solve for x
    x = 92,066,393,090.64/336,136.78
  6. Step 6: Final answer
    x = 273,895.62

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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.