Home / 313,342.20-470,072.82-103,040.76

Finding the Fourth Proportional to 313,342.20, 470,072.82 and 103,040.76

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Solution

The fourth proportional to 313,342.20, 470,072.82 and 103,040.76 is: 154,580.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,342.20 : 470,072.82 = 103,040.76 : x
  2. Step 2: Convert to fraction form
    313,342.20/470,072.82 = 103,040.76/x
  3. Step 3: Cross multiply
    313,342.20x = 470,072.82 × 103,040.76
  4. Step 4: Simplify right side
    313,342.20x = 48,436,660,628.14
  5. Step 5: Solve for x
    x = 48,436,660,628.14/313,342.20
  6. Step 6: Final answer
    x = 154,580.71

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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.