Home / 351,112.32-484,499.88-198,136.80

Finding the Fourth Proportional to 351,112.32, 484,499.88 and 198,136.80

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Solution

The fourth proportional to 351,112.32, 484,499.88 and 198,136.80 is: 273,408.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,112.32 : 484,499.88 = 198,136.80 : x
  2. Step 2: Convert to fraction form
    351,112.32/484,499.88 = 198,136.80/x
  3. Step 3: Cross multiply
    351,112.32x = 484,499.88 × 198,136.80
  4. Step 4: Simplify right side
    351,112.32x = 95,997,255,823.58
  5. Step 5: Solve for x
    x = 95,997,255,823.58/351,112.32
  6. Step 6: Final answer
    x = 273,408.96

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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.