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Finding the Fourth Proportional to 271,046, 374,033.40 and 156,329.39

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Solution

The fourth proportional to 271,046, 374,033.40 and 156,329.39 is: 215,728.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,046 : 374,033.40 = 156,329.39 : x
  2. Step 2: Convert to fraction form
    271,046/374,033.40 = 156,329.39/x
  3. Step 3: Cross multiply
    271,046x = 374,033.40 × 156,329.39
  4. Step 4: Simplify right side
    271,046x = 58,472,413,261.63
  5. Step 5: Solve for x
    x = 58,472,413,261.63/271,046
  6. Step 6: Final answer
    x = 215,728.74

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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.