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Finding the Fourth Proportional to 201,272, 301,918.26 and 51,513.52

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Solution

The fourth proportional to 201,272, 301,918.26 and 51,513.52 is: 77,272.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,272 : 301,918.26 = 51,513.52 : x
  2. Step 2: Convert to fraction form
    201,272/301,918.26 = 51,513.52/x
  3. Step 3: Cross multiply
    201,272x = 301,918.26 × 51,513.52
  4. Step 4: Simplify right side
    201,272x = 15,552,872,324.88
  5. Step 5: Solve for x
    x = 15,552,872,324.88/201,272
  6. Step 6: Final answer
    x = 77,272.91

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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.