Home / 331,013.40-496,131.30-153,144.72

Finding the Fourth Proportional to 331,013.40, 496,131.30 and 153,144.72

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Solution

The fourth proportional to 331,013.40, 496,131.30 and 153,144.72 is: 229,537.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,013.40 : 496,131.30 = 153,144.72 : x
  2. Step 2: Convert to fraction form
    331,013.40/496,131.30 = 153,144.72/x
  3. Step 3: Cross multiply
    331,013.40x = 496,131.30 × 153,144.72
  4. Step 4: Simplify right side
    331,013.40x = 75,979,889,021.74
  5. Step 5: Solve for x
    x = 75,979,889,021.74/331,013.40
  6. Step 6: Final answer
    x = 229,537.20

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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.