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Finding the Fourth Proportional to 303,961.78, 455,696.70 and 126,602.02

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Solution

The fourth proportional to 303,961.78, 455,696.70 and 126,602.02 is: 189,800.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,961.78 : 455,696.70 = 126,602.02 : x
  2. Step 2: Convert to fraction form
    303,961.78/455,696.70 = 126,602.02/x
  3. Step 3: Cross multiply
    303,961.78x = 455,696.70 × 126,602.02
  4. Step 4: Simplify right side
    303,961.78x = 57,692,122,727.33
  5. Step 5: Solve for x
    x = 57,692,122,727.33/303,961.78
  6. Step 6: Final answer
    x = 189,800.58

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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.