Home / 300,082.10-450,146.91-100,403.54

Finding the Fourth Proportional to 300,082.10, 450,146.91 and 100,403.54

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Solution

The fourth proportional to 300,082.10, 450,146.91 and 100,403.54 is: 150,613.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,082.10 : 450,146.91 = 100,403.54 : x
  2. Step 2: Convert to fraction form
    300,082.10/450,146.91 = 100,403.54/x
  3. Step 3: Cross multiply
    300,082.10x = 450,146.91 × 100,403.54
  4. Step 4: Simplify right side
    300,082.10x = 45,196,343,284.06
  5. Step 5: Solve for x
    x = 45,196,343,284.06/300,082.10
  6. Step 6: Final answer
    x = 150,613.26

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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.