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Finding the Fourth Proportional to 265,651.80, 398,574.90 and 107,896.20

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Solution

The fourth proportional to 265,651.80, 398,574.90 and 107,896.20 is: 161,883.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,651.80 : 398,574.90 = 107,896.20 : x
  2. Step 2: Convert to fraction form
    265,651.80/398,574.90 = 107,896.20/x
  3. Step 3: Cross multiply
    265,651.80x = 398,574.90 × 107,896.20
  4. Step 4: Simplify right side
    265,651.80x = 43,004,717,125.38
  5. Step 5: Solve for x
    x = 43,004,717,125.38/265,651.80
  6. Step 6: Final answer
    x = 161,883.78

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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.