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Finding the Fourth Proportional to 216,618.40, 324,927.60 and 200,029.60

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Solution

The fourth proportional to 216,618.40, 324,927.60 and 200,029.60 is: 300,044.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,618.40 : 324,927.60 = 200,029.60 : x
  2. Step 2: Convert to fraction form
    216,618.40/324,927.60 = 200,029.60/x
  3. Step 3: Cross multiply
    216,618.40x = 324,927.60 × 200,029.60
  4. Step 4: Simplify right side
    216,618.40x = 64,995,137,856.96
  5. Step 5: Solve for x
    x = 64,995,137,856.96/216,618.40
  6. Step 6: Final answer
    x = 300,044.40

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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.