Home / 212,450.12-318,729.86-62,684.36

Finding the Fourth Proportional to 212,450.12, 318,729.86 and 62,684.36

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Solution

The fourth proportional to 212,450.12, 318,729.86 and 62,684.36 is: 94,042.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,450.12 : 318,729.86 = 62,684.36 : x
  2. Step 2: Convert to fraction form
    212,450.12/318,729.86 = 62,684.36/x
  3. Step 3: Cross multiply
    212,450.12x = 318,729.86 × 62,684.36
  4. Step 4: Simplify right side
    212,450.12x = 19,979,377,286.99
  5. Step 5: Solve for x
    x = 19,979,377,286.99/212,450.12
  6. Step 6: Final answer
    x = 94,042.67

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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.