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Finding the Fourth Proportional to 201,563.02, 302,388.27 and 61,318

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Solution

The fourth proportional to 201,563.02, 302,388.27 and 61,318 is: 91,990.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,563.02 : 302,388.27 = 61,318 : x
  2. Step 2: Convert to fraction form
    201,563.02/302,388.27 = 61,318/x
  3. Step 3: Cross multiply
    201,563.02x = 302,388.27 × 61,318
  4. Step 4: Simplify right side
    201,563.02x = 18,541,843,939.86
  5. Step 5: Solve for x
    x = 18,541,843,939.86/201,563.02
  6. Step 6: Final answer
    x = 91,990.31

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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.