Home / 217,816.20-326,801.10-210,136.20

Finding the Fourth Proportional to 217,816.20, 326,801.10 and 210,136.20

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Solution

The fourth proportional to 217,816.20, 326,801.10 and 210,136.20 is: 315,278.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,816.20 : 326,801.10 = 210,136.20 : x
  2. Step 2: Convert to fraction form
    217,816.20/326,801.10 = 210,136.20/x
  3. Step 3: Cross multiply
    217,816.20x = 326,801.10 × 210,136.20
  4. Step 4: Simplify right side
    217,816.20x = 68,672,741,309.82
  5. Step 5: Solve for x
    x = 68,672,741,309.82/217,816.20
  6. Step 6: Final answer
    x = 315,278.39

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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.