Home / 265,934.10-398,363.55-165,786.90

Finding the Fourth Proportional to 265,934.10, 398,363.55 and 165,786.90

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Solution

The fourth proportional to 265,934.10, 398,363.55 and 165,786.90 is: 248,345.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,934.10 : 398,363.55 = 165,786.90 : x
  2. Step 2: Convert to fraction form
    265,934.10/398,363.55 = 165,786.90/x
  3. Step 3: Cross multiply
    265,934.10x = 398,363.55 × 165,786.90
  4. Step 4: Simplify right side
    265,934.10x = 66,043,458,027.50
  5. Step 5: Solve for x
    x = 66,043,458,027.50/265,934.10
  6. Step 6: Final answer
    x = 248,345.20

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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.