Home / 336,905.40-505,366.20-100,255.80

Finding the Fourth Proportional to 336,905.40, 505,366.20 and 100,255.80

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Solution

The fourth proportional to 336,905.40, 505,366.20 and 100,255.80 is: 150,386.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,905.40 : 505,366.20 = 100,255.80 : x
  2. Step 2: Convert to fraction form
    336,905.40/505,366.20 = 100,255.80/x
  3. Step 3: Cross multiply
    336,905.40x = 505,366.20 × 100,255.80
  4. Step 4: Simplify right side
    336,905.40x = 50,665,892,673.96
  5. Step 5: Solve for x
    x = 50,665,892,673.96/336,905.40
  6. Step 6: Final answer
    x = 150,386.11

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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.