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Finding the Fourth Proportional to 439,441.76, 606,445.96 and 248,443.76

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Solution

The fourth proportional to 439,441.76, 606,445.96 and 248,443.76 is: 342,861.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,441.76 : 606,445.96 = 248,443.76 : x
  2. Step 2: Convert to fraction form
    439,441.76/606,445.96 = 248,443.76/x
  3. Step 3: Cross multiply
    439,441.76x = 606,445.96 × 248,443.76
  4. Step 4: Simplify right side
    439,441.76x = 150,667,714,539.21
  5. Step 5: Solve for x
    x = 150,667,714,539.21/439,441.76
  6. Step 6: Final answer
    x = 342,861.62

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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.