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Finding the Fourth Proportional to 201,661.35, 302,489.94 and 51,901.05

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Solution

The fourth proportional to 201,661.35, 302,489.94 and 51,901.05 is: 77,851.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,661.35 : 302,489.94 = 51,901.05 : x
  2. Step 2: Convert to fraction form
    201,661.35/302,489.94 = 51,901.05/x
  3. Step 3: Cross multiply
    201,661.35x = 302,489.94 × 51,901.05
  4. Step 4: Simplify right side
    201,661.35x = 15,699,545,500.44
  5. Step 5: Solve for x
    x = 15,699,545,500.44/201,661.35
  6. Step 6: Final answer
    x = 77,851.04

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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.