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Finding the Fourth Proportional to 486,205.29, 670,996.98 and 271,387.35

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Solution

The fourth proportional to 486,205.29, 670,996.98 and 271,387.35 is: 374,533.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,205.29 : 670,996.98 = 271,387.35 : x
  2. Step 2: Convert to fraction form
    486,205.29/670,996.98 = 271,387.35/x
  3. Step 3: Cross multiply
    486,205.29x = 670,996.98 × 271,387.35
  4. Step 4: Simplify right side
    486,205.29x = 182,100,092,260.20
  5. Step 5: Solve for x
    x = 182,100,092,260.20/486,205.29
  6. Step 6: Final answer
    x = 374,533.34

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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.