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Finding the Fourth Proportional to 275,021.35, 412,532.34 and 75,343.45

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Solution

The fourth proportional to 275,021.35, 412,532.34 and 75,343.45 is: 113,015.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,021.35 : 412,532.34 = 75,343.45 : x
  2. Step 2: Convert to fraction form
    275,021.35/412,532.34 = 75,343.45/x
  3. Step 3: Cross multiply
    275,021.35x = 412,532.34 × 75,343.45
  4. Step 4: Simplify right side
    275,021.35x = 31,081,609,732.17
  5. Step 5: Solve for x
    x = 31,081,609,732.17/275,021.35
  6. Step 6: Final answer
    x = 113,015.26

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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.