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Finding the Fourth Proportional to 486,376.50, 671,188.40 and 271,536.54

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Solution

The fourth proportional to 486,376.50, 671,188.40 and 271,536.54 is: 374,714.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,376.50 : 671,188.40 = 271,536.54 : x
  2. Step 2: Convert to fraction form
    486,376.50/671,188.40 = 271,536.54/x
  3. Step 3: Cross multiply
    486,376.50x = 671,188.40 × 271,536.54
  4. Step 4: Simplify right side
    486,376.50x = 182,252,175,824.14
  5. Step 5: Solve for x
    x = 182,252,175,824.14/486,376.50
  6. Step 6: Final answer
    x = 374,714.19

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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.