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Finding the Fourth Proportional to 271,377.78, 374,256.32 and 169,412.64

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Solution

The fourth proportional to 271,377.78, 374,256.32 and 169,412.64 is: 233,636.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,377.78 : 374,256.32 = 169,412.64 : x
  2. Step 2: Convert to fraction form
    271,377.78/374,256.32 = 169,412.64/x
  3. Step 3: Cross multiply
    271,377.78x = 374,256.32 × 169,412.64
  4. Step 4: Simplify right side
    271,377.78x = 63,403,750,360.82
  5. Step 5: Solve for x
    x = 63,403,750,360.82/271,377.78
  6. Step 6: Final answer
    x = 233,636.48

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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.