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Finding the Fourth Proportional to 271,343.82, 374,378.10 and 213,804.78

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Solution

The fourth proportional to 271,343.82, 374,378.10 and 213,804.78 is: 294,990.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,343.82 : 374,378.10 = 213,804.78 : x
  2. Step 2: Convert to fraction form
    271,343.82/374,378.10 = 213,804.78/x
  3. Step 3: Cross multiply
    271,343.82x = 374,378.10 × 213,804.78
  4. Step 4: Simplify right side
    271,343.82x = 80,043,827,307.32
  5. Step 5: Solve for x
    x = 80,043,827,307.32/271,343.82
  6. Step 6: Final answer
    x = 294,990.42

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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.