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Finding the Fourth Proportional to 486,159.60, 670,820.01 and 271,299.15

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Solution

The fourth proportional to 486,159.60, 670,820.01 and 271,299.15 is: 374,348.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,159.60 : 670,820.01 = 271,299.15 : x
  2. Step 2: Convert to fraction form
    486,159.60/670,820.01 = 271,299.15/x
  3. Step 3: Cross multiply
    486,159.60x = 670,820.01 × 271,299.15
  4. Step 4: Simplify right side
    486,159.60x = 181,992,897,498.62
  5. Step 5: Solve for x
    x = 181,992,897,498.62/486,159.60
  6. Step 6: Final answer
    x = 374,348.05

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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.