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Finding the Fourth Proportional to 217,626.27, 300,627.01 and 206,985.40

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Solution

The fourth proportional to 217,626.27, 300,627.01 and 206,985.40 is: 285,927.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,626.27 : 300,627.01 = 206,985.40 : x
  2. Step 2: Convert to fraction form
    217,626.27/300,627.01 = 206,985.40/x
  3. Step 3: Cross multiply
    217,626.27x = 300,627.01 × 206,985.40
  4. Step 4: Simplify right side
    217,626.27x = 62,225,401,915.65
  5. Step 5: Solve for x
    x = 62,225,401,915.65/217,626.27
  6. Step 6: Final answer
    x = 285,927.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.