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Finding the Fourth Proportional to 199,311.84, 299,048.76 and 80,992.44

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Solution

The fourth proportional to 199,311.84, 299,048.76 and 80,992.44 is: 121,521.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,311.84 : 299,048.76 = 80,992.44 : x
  2. Step 2: Convert to fraction form
    199,311.84/299,048.76 = 80,992.44/x
  3. Step 3: Cross multiply
    199,311.84x = 299,048.76 × 80,992.44
  4. Step 4: Simplify right side
    199,311.84x = 24,220,688,751.37
  5. Step 5: Solve for x
    x = 24,220,688,751.37/199,311.84
  6. Step 6: Final answer
    x = 121,521.58

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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.