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Finding the Fourth Proportional to 265,744.40, 398,616.60 and 254,226.20

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Solution

The fourth proportional to 265,744.40, 398,616.60 and 254,226.20 is: 381,339.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,744.40 : 398,616.60 = 254,226.20 : x
  2. Step 2: Convert to fraction form
    265,744.40/398,616.60 = 254,226.20/x
  3. Step 3: Cross multiply
    265,744.40x = 398,616.60 × 254,226.20
  4. Step 4: Simplify right side
    265,744.40x = 101,338,783,474.92
  5. Step 5: Solve for x
    x = 101,338,783,474.92/265,744.40
  6. Step 6: Final answer
    x = 381,339.30

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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.