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Finding the Fourth Proportional to 343,902.40, 515,853.60 and 325,531.60

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Solution

The fourth proportional to 343,902.40, 515,853.60 and 325,531.60 is: 488,297.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,902.40 : 515,853.60 = 325,531.60 : x
  2. Step 2: Convert to fraction form
    343,902.40/515,853.60 = 325,531.60/x
  3. Step 3: Cross multiply
    343,902.40x = 515,853.60 × 325,531.60
  4. Step 4: Simplify right side
    343,902.40x = 167,926,647,773.76
  5. Step 5: Solve for x
    x = 167,926,647,773.76/343,902.40
  6. Step 6: Final answer
    x = 488,297.40

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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.