Home / 300,144.03-450,239.75-100,465.16

Finding the Fourth Proportional to 300,144.03, 450,239.75 and 100,465.16

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Solution

The fourth proportional to 300,144.03, 450,239.75 and 100,465.16 is: 150,705.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,144.03 : 450,239.75 = 100,465.16 : x
  2. Step 2: Convert to fraction form
    300,144.03/450,239.75 = 100,465.16/x
  3. Step 3: Cross multiply
    300,144.03x = 450,239.75 × 100,465.16
  4. Step 4: Simplify right side
    300,144.03x = 45,233,405,768.59
  5. Step 5: Solve for x
    x = 45,233,405,768.59/300,144.03
  6. Step 6: Final answer
    x = 150,705.67

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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.