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Finding the Fourth Proportional to 201,034.78, 301,552.20 and 53,290.78

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Solution

The fourth proportional to 201,034.78, 301,552.20 and 53,290.78 is: 79,936.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,034.78 : 301,552.20 = 53,290.78 : x
  2. Step 2: Convert to fraction form
    201,034.78/301,552.20 = 53,290.78/x
  3. Step 3: Cross multiply
    201,034.78x = 301,552.20 × 53,290.78
  4. Step 4: Simplify right side
    201,034.78x = 16,069,951,948.72
  5. Step 5: Solve for x
    x = 16,069,951,948.72/201,034.78
  6. Step 6: Final answer
    x = 79,936.18

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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.