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Finding the Fourth Proportional to 303,268.80, 454,028.40 and 268,276.80

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Solution

The fourth proportional to 303,268.80, 454,028.40 and 268,276.80 is: 401,641.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,268.80 : 454,028.40 = 268,276.80 : x
  2. Step 2: Convert to fraction form
    303,268.80/454,028.40 = 268,276.80/x
  3. Step 3: Cross multiply
    303,268.80x = 454,028.40 × 268,276.80
  4. Step 4: Simplify right side
    303,268.80x = 121,805,286,261.12
  5. Step 5: Solve for x
    x = 121,805,286,261.12/303,268.80
  6. Step 6: Final answer
    x = 401,641.34

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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.