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Finding the Fourth Proportional to 504,042.80, 756,355.80 and 188,531.60

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Solution

The fourth proportional to 504,042.80, 756,355.80 and 188,531.60 is: 282,906.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,042.80 : 756,355.80 = 188,531.60 : x
  2. Step 2: Convert to fraction form
    504,042.80/756,355.80 = 188,531.60/x
  3. Step 3: Cross multiply
    504,042.80x = 756,355.80 × 188,531.60
  4. Step 4: Simplify right side
    504,042.80x = 142,596,969,143.28
  5. Step 5: Solve for x
    x = 142,596,969,143.28/504,042.80
  6. Step 6: Final answer
    x = 282,906.47

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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.