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Finding the Fourth Proportional to 331,048.26, 496,573.60 and 81,730.26

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Solution

The fourth proportional to 331,048.26, 496,573.60 and 81,730.26 is: 122,595.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,048.26 : 496,573.60 = 81,730.26 : x
  2. Step 2: Convert to fraction form
    331,048.26/496,573.60 = 81,730.26/x
  3. Step 3: Cross multiply
    331,048.26x = 496,573.60 × 81,730.26
  4. Step 4: Simplify right side
    331,048.26x = 40,585,089,437.14
  5. Step 5: Solve for x
    x = 40,585,089,437.14/331,048.26
  6. Step 6: Final answer
    x = 122,595.69

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1.5x scale

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.