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Finding the Fourth Proportional to 349,387.62, 482,172 and 196,473.93

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Solution

The fourth proportional to 349,387.62, 482,172 and 196,473.93 is: 271,143.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,387.62 : 482,172 = 196,473.93 : x
  2. Step 2: Convert to fraction form
    349,387.62/482,172 = 196,473.93/x
  3. Step 3: Cross multiply
    349,387.62x = 482,172 × 196,473.93
  4. Step 4: Simplify right side
    349,387.62x = 94,734,225,365.10
  5. Step 5: Solve for x
    x = 94,734,225,365.10/349,387.62
  6. Step 6: Final answer
    x = 271,143.63

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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.