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Finding the Fourth Proportional to 271,503.80, 407,092.08 and 121,717

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Solution

The fourth proportional to 271,503.80, 407,092.08 and 121,717 is: 182,502.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,503.80 : 407,092.08 = 121,717 : x
  2. Step 2: Convert to fraction form
    271,503.80/407,092.08 = 121,717/x
  3. Step 3: Cross multiply
    271,503.80x = 407,092.08 × 121,717
  4. Step 4: Simplify right side
    271,503.80x = 49,550,026,701.36
  5. Step 5: Solve for x
    x = 49,550,026,701.36/271,503.80
  6. Step 6: Final answer
    x = 182,502.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.