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Finding the Fourth Proportional to 200,653.88, 300,948 and 60,379.70

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Solution

The fourth proportional to 200,653.88, 300,948 and 60,379.70 is: 90,559.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,653.88 : 300,948 = 60,379.70 : x
  2. Step 2: Convert to fraction form
    200,653.88/300,948 = 60,379.70/x
  3. Step 3: Cross multiply
    200,653.88x = 300,948 × 60,379.70
  4. Step 4: Simplify right side
    200,653.88x = 18,171,148,450.86
  5. Step 5: Solve for x
    x = 18,171,148,450.86/200,653.88
  6. Step 6: Final answer
    x = 90,559.67

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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.