Home / 268,271.25-401,794.52-128,128.29

Finding the Fourth Proportional to 268,271.25, 401,794.52 and 128,128.29

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Solution

The fourth proportional to 268,271.25, 401,794.52 and 128,128.29 is: 191,899.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,271.25 : 401,794.52 = 128,128.29 : x
  2. Step 2: Convert to fraction form
    268,271.25/401,794.52 = 128,128.29/x
  3. Step 3: Cross multiply
    268,271.25x = 401,794.52 × 128,128.29
  4. Step 4: Simplify right side
    268,271.25x = 51,481,244,138.33
  5. Step 5: Solve for x
    x = 51,481,244,138.33/268,271.25
  6. Step 6: Final answer
    x = 191,899.97

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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.