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Finding the Fourth Proportional to 308,803.50, 425,810.43 and 201,173.94

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Solution

The fourth proportional to 308,803.50, 425,810.43 and 201,173.94 is: 277,399.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,803.50 : 425,810.43 = 201,173.94 : x
  2. Step 2: Convert to fraction form
    308,803.50/425,810.43 = 201,173.94/x
  3. Step 3: Cross multiply
    308,803.50x = 425,810.43 × 201,173.94
  4. Step 4: Simplify right side
    308,803.50x = 85,661,961,896.19
  5. Step 5: Solve for x
    x = 85,661,961,896.19/308,803.50
  6. Step 6: Final answer
    x = 277,399.58

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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.