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Finding the Fourth Proportional to 656,673.72, 985,040.22 and 201,232.20

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Solution

The fourth proportional to 656,673.72, 985,040.22 and 201,232.20 is: 301,857.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,673.72 : 985,040.22 = 201,232.20 : x
  2. Step 2: Convert to fraction form
    656,673.72/985,040.22 = 201,232.20/x
  3. Step 3: Cross multiply
    656,673.72x = 985,040.22 × 201,232.20
  4. Step 4: Simplify right side
    656,673.72x = 198,221,810,559.08
  5. Step 5: Solve for x
    x = 198,221,810,559.08/656,673.72
  6. Step 6: Final answer
    x = 301,857.38

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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.