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Finding the Fourth Proportional to 331,360.50, 497,040.75 and 82,042.50

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Solution

The fourth proportional to 331,360.50, 497,040.75 and 82,042.50 is: 123,063.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,360.50 : 497,040.75 = 82,042.50 : x
  2. Step 2: Convert to fraction form
    331,360.50/497,040.75 = 82,042.50/x
  3. Step 3: Cross multiply
    331,360.50x = 497,040.75 × 82,042.50
  4. Step 4: Simplify right side
    331,360.50x = 40,778,465,731.88
  5. Step 5: Solve for x
    x = 40,778,465,731.88/331,360.50
  6. Step 6: Final answer
    x = 123,063.75

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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.