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Finding the Fourth Proportional to 213,053.60, 319,504.80 and 94,512.80

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Solution

The fourth proportional to 213,053.60, 319,504.80 and 94,512.80 is: 141,735.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,053.60 : 319,504.80 = 94,512.80 : x
  2. Step 2: Convert to fraction form
    213,053.60/319,504.80 = 94,512.80/x
  3. Step 3: Cross multiply
    213,053.60x = 319,504.80 × 94,512.80
  4. Step 4: Simplify right side
    213,053.60x = 30,197,293,261.44
  5. Step 5: Solve for x
    x = 30,197,293,261.44/213,053.60
  6. Step 6: Final answer
    x = 141,735.66

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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.