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Finding the Fourth Proportional to 360,015.44, 496,449.18 and 309,196.44

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Solution

The fourth proportional to 360,015.44, 496,449.18 and 309,196.44 is: 426,371.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,015.44 : 496,449.18 = 309,196.44 : x
  2. Step 2: Convert to fraction form
    360,015.44/496,449.18 = 309,196.44/x
  3. Step 3: Cross multiply
    360,015.44x = 496,449.18 × 309,196.44
  4. Step 4: Simplify right side
    360,015.44x = 153,500,319,096.92
  5. Step 5: Solve for x
    x = 153,500,319,096.92/360,015.44
  6. Step 6: Final answer
    x = 426,371.49

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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.