Home / 420,156.42-629,939.38-153,882.33

Finding the Fourth Proportional to 420,156.42, 629,939.38 and 153,882.33

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Solution

The fourth proportional to 420,156.42, 629,939.38 and 153,882.33 is: 230,715.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,156.42 : 629,939.38 = 153,882.33 : x
  2. Step 2: Convert to fraction form
    420,156.42/629,939.38 = 153,882.33/x
  3. Step 3: Cross multiply
    420,156.42x = 629,939.38 × 153,882.33
  4. Step 4: Simplify right side
    420,156.42x = 96,936,540,638.12
  5. Step 5: Solve for x
    x = 96,936,540,638.12/420,156.42
  6. Step 6: Final answer
    x = 230,715.36

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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.