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Finding the Fourth Proportional to 352,253.56, 486,109.86 and 201,353.80

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Solution

The fourth proportional to 352,253.56, 486,109.86 and 201,353.80 is: 277,868.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,253.56 : 486,109.86 = 201,353.80 : x
  2. Step 2: Convert to fraction form
    352,253.56/486,109.86 = 201,353.80/x
  3. Step 3: Cross multiply
    352,253.56x = 486,109.86 × 201,353.80
  4. Step 4: Simplify right side
    352,253.56x = 97,880,067,528.47
  5. Step 5: Solve for x
    x = 97,880,067,528.47/352,253.56
  6. Step 6: Final answer
    x = 277,868.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.