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Finding the Fourth Proportional to 284,850.64, 426,902.08 and 209,618.56

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Solution

The fourth proportional to 284,850.64, 426,902.08 and 209,618.56 is: 314,152.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,850.64 : 426,902.08 = 209,618.56 : x
  2. Step 2: Convert to fraction form
    284,850.64/426,902.08 = 209,618.56/x
  3. Step 3: Cross multiply
    284,850.64x = 426,902.08 × 209,618.56
  4. Step 4: Simplify right side
    284,850.64x = 89,486,599,270.60
  5. Step 5: Solve for x
    x = 89,486,599,270.60/284,850.64
  6. Step 6: Final answer
    x = 314,152.71

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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.