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Finding the Fourth Proportional to 345,358.82, 476,587.98 and 192,396.80

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Solution

The fourth proportional to 345,358.82, 476,587.98 and 192,396.80 is: 265,503.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,358.82 : 476,587.98 = 192,396.80 : x
  2. Step 2: Convert to fraction form
    345,358.82/476,587.98 = 192,396.80/x
  3. Step 3: Cross multiply
    345,358.82x = 476,587.98 × 192,396.80
  4. Step 4: Simplify right side
    345,358.82x = 91,694,002,270.46
  5. Step 5: Solve for x
    x = 91,694,002,270.46/345,358.82
  6. Step 6: Final answer
    x = 265,503.58

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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.