Home / 265,519.20-398,739.60-141,103.20

Finding the Fourth Proportional to 265,519.20, 398,739.60 and 141,103.20

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Solution

The fourth proportional to 265,519.20, 398,739.60 and 141,103.20 is: 211,899.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,519.20 : 398,739.60 = 141,103.20 : x
  2. Step 2: Convert to fraction form
    265,519.20/398,739.60 = 141,103.20/x
  3. Step 3: Cross multiply
    265,519.20x = 398,739.60 × 141,103.20
  4. Step 4: Simplify right side
    265,519.20x = 56,263,433,526.72
  5. Step 5: Solve for x
    x = 56,263,433,526.72/265,519.20
  6. Step 6: Final answer
    x = 211,899.68

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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.