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Finding the Fourth Proportional to 344,060.80, 515,988.80 and 133,577.60

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Solution

The fourth proportional to 344,060.80, 515,988.80 and 133,577.60 is: 200,326.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,060.80 : 515,988.80 = 133,577.60 : x
  2. Step 2: Convert to fraction form
    344,060.80/515,988.80 = 133,577.60/x
  3. Step 3: Cross multiply
    344,060.80x = 515,988.80 × 133,577.60
  4. Step 4: Simplify right side
    344,060.80x = 68,924,545,530.88
  5. Step 5: Solve for x
    x = 68,924,545,530.88/344,060.80
  6. Step 6: Final answer
    x = 200,326.64

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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.