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Finding the Fourth Proportional to 345,299.55, 476,579.56 and 194,396.55

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Solution

The fourth proportional to 345,299.55, 476,579.56 and 194,396.55 is: 268,304.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,299.55 : 476,579.56 = 194,396.55 : x
  2. Step 2: Convert to fraction form
    345,299.55/476,579.56 = 194,396.55/x
  3. Step 3: Cross multiply
    345,299.55x = 476,579.56 × 194,396.55
  4. Step 4: Simplify right side
    345,299.55x = 92,645,422,264.52
  5. Step 5: Solve for x
    x = 92,645,422,264.52/345,299.55
  6. Step 6: Final answer
    x = 268,304.50

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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.