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Finding the Fourth Proportional to 202,504.10, 303,428.10 and 172,979.60

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Solution

The fourth proportional to 202,504.10, 303,428.10 and 172,979.60 is: 259,189.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,504.10 : 303,428.10 = 172,979.60 : x
  2. Step 2: Convert to fraction form
    202,504.10/303,428.10 = 172,979.60/x
  3. Step 3: Cross multiply
    202,504.10x = 303,428.10 × 172,979.60
  4. Step 4: Simplify right side
    202,504.10x = 52,486,871,366.76
  5. Step 5: Solve for x
    x = 52,486,871,366.76/202,504.10
  6. Step 6: Final answer
    x = 259,189.18

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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.