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Finding the Fourth Proportional to 298,649.50, 448,039.79 and 219,523.84

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Solution

The fourth proportional to 298,649.50, 448,039.79 and 219,523.84 is: 329,333.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,649.50 : 448,039.79 = 219,523.84 : x
  2. Step 2: Convert to fraction form
    298,649.50/448,039.79 = 219,523.84/x
  3. Step 3: Cross multiply
    298,649.50x = 448,039.79 × 219,523.84
  4. Step 4: Simplify right side
    298,649.50x = 98,355,415,173.59
  5. Step 5: Solve for x
    x = 98,355,415,173.59/298,649.50
  6. Step 6: Final answer
    x = 329,333.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.