Home / 445,523.20-668,310.40-130,028.80

Finding the Fourth Proportional to 445,523.20, 668,310.40 and 130,028.80

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Solution

The fourth proportional to 445,523.20, 668,310.40 and 130,028.80 is: 195,050.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,523.20 : 668,310.40 = 130,028.80 : x
  2. Step 2: Convert to fraction form
    445,523.20/668,310.40 = 130,028.80/x
  3. Step 3: Cross multiply
    445,523.20x = 668,310.40 × 130,028.80
  4. Step 4: Simplify right side
    445,523.20x = 86,899,599,339.52
  5. Step 5: Solve for x
    x = 86,899,599,339.52/445,523.20
  6. Step 6: Final answer
    x = 195,050.67

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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.