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Finding the Fourth Proportional to 372,856.50, 514,608.66 and 219,885.30

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Solution

The fourth proportional to 372,856.50, 514,608.66 and 219,885.30 is: 303,481.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,856.50 : 514,608.66 = 219,885.30 : x
  2. Step 2: Convert to fraction form
    372,856.50/514,608.66 = 219,885.30/x
  3. Step 3: Cross multiply
    372,856.50x = 514,608.66 × 219,885.30
  4. Step 4: Simplify right side
    372,856.50x = 113,154,879,586.70
  5. Step 5: Solve for x
    x = 113,154,879,586.70/372,856.50
  6. Step 6: Final answer
    x = 303,481.04

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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.