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Finding the Fourth Proportional to 376,589.50, 519,739.60 and 217,613.50

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Solution

The fourth proportional to 376,589.50, 519,739.60 and 217,613.50 is: 300,333.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,589.50 : 519,739.60 = 217,613.50 : x
  2. Step 2: Convert to fraction form
    376,589.50/519,739.60 = 217,613.50/x
  3. Step 3: Cross multiply
    376,589.50x = 519,739.60 × 217,613.50
  4. Step 4: Simplify right side
    376,589.50x = 113,102,353,444.60
  5. Step 5: Solve for x
    x = 113,102,353,444.60/376,589.50
  6. Step 6: Final answer
    x = 300,333.26

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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.