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Finding the Fourth Proportional to 271,642.89, 374,890.92 and 158,502.09

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Solution

The fourth proportional to 271,642.89, 374,890.92 and 158,502.09 is: 218,746.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,642.89 : 374,890.92 = 158,502.09 : x
  2. Step 2: Convert to fraction form
    271,642.89/374,890.92 = 158,502.09/x
  3. Step 3: Cross multiply
    271,642.89x = 374,890.92 × 158,502.09
  4. Step 4: Simplify right side
    271,642.89x = 59,420,994,342.02
  5. Step 5: Solve for x
    x = 59,420,994,342.02/271,642.89
  6. Step 6: Final answer
    x = 218,746.73

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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.