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Finding the Fourth Proportional to 308,637.56, 425,825.35 and 201,168.38

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Solution

The fourth proportional to 308,637.56, 425,825.35 and 201,168.38 is: 277,550.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,637.56 : 425,825.35 = 201,168.38 : x
  2. Step 2: Convert to fraction form
    308,637.56/425,825.35 = 201,168.38/x
  3. Step 3: Cross multiply
    308,637.56x = 425,825.35 × 201,168.38
  4. Step 4: Simplify right side
    308,637.56x = 85,662,595,822.43
  5. Step 5: Solve for x
    x = 85,662,595,822.43/308,637.56
  6. Step 6: Final answer
    x = 277,550.78

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1.5x scale

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.