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Finding the Fourth Proportional to 376,585.50, 519,734.07 and 217,609.50

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Solution

The fourth proportional to 376,585.50, 519,734.07 and 217,609.50 is: 300,327.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,585.50 : 519,734.07 = 217,609.50 : x
  2. Step 2: Convert to fraction form
    376,585.50/519,734.07 = 217,609.50/x
  3. Step 3: Cross multiply
    376,585.50x = 519,734.07 × 217,609.50
  4. Step 4: Simplify right side
    376,585.50x = 113,099,071,105.67
  5. Step 5: Solve for x
    x = 113,099,071,105.67/376,585.50
  6. Step 6: Final answer
    x = 300,327.74

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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.