Home / 326,844.82-490,140.87-127,138.24

Finding the Fourth Proportional to 326,844.82, 490,140.87 and 127,138.24

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Solution

The fourth proportional to 326,844.82, 490,140.87 and 127,138.24 is: 190,658.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,844.82 : 490,140.87 = 127,138.24 : x
  2. Step 2: Convert to fraction form
    326,844.82/490,140.87 = 127,138.24/x
  3. Step 3: Cross multiply
    326,844.82x = 490,140.87 × 127,138.24
  4. Step 4: Simplify right side
    326,844.82x = 62,315,647,563.87
  5. Step 5: Solve for x
    x = 62,315,647,563.87/326,844.82
  6. Step 6: Final answer
    x = 190,658.21

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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.