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Finding the Fourth Proportional to 644,912.40, 967,368.60 and 201,680.40

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Solution

The fourth proportional to 644,912.40, 967,368.60 and 201,680.40 is: 302,520.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,912.40 : 967,368.60 = 201,680.40 : x
  2. Step 2: Convert to fraction form
    644,912.40/967,368.60 = 201,680.40/x
  3. Step 3: Cross multiply
    644,912.40x = 967,368.60 × 201,680.40
  4. Step 4: Simplify right side
    644,912.40x = 195,099,286,195.44
  5. Step 5: Solve for x
    x = 195,099,286,195.44/644,912.40
  6. Step 6: Final answer
    x = 302,520.60

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Similar ratio
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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.