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Finding the Fourth Proportional to 101,281.30, 151,918.68 and 30,204.53

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Solution

The fourth proportional to 101,281.30, 151,918.68 and 30,204.53 is: 45,305.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,281.30 : 151,918.68 = 30,204.53 : x
  2. Step 2: Convert to fraction form
    101,281.30/151,918.68 = 30,204.53/x
  3. Step 3: Cross multiply
    101,281.30x = 151,918.68 × 30,204.53
  4. Step 4: Simplify right side
    101,281.30x = 4,588,631,568.03
  5. Step 5: Solve for x
    x = 4,588,631,568.03/101,281.30
  6. Step 6: Final answer
    x = 45,305.81

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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.