Finding the Fourth Proportional to 403,972.80, 605,813.40 and 204,226.80
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Solution
The fourth proportional to 403,972.80, 605,813.40 and 204,226.80 is: 306,266.49
Step by Step Solution
- Step 1: Write the proportion equation
403,972.80 : 605,813.40 = 204,226.80 : x - Step 2: Convert to fraction form
403,972.80/605,813.40 = 204,226.80/x - Step 3: Cross multiply
403,972.80x = 605,813.40 × 204,226.80 - Step 4: Simplify right side
403,972.80x = 123,723,332,079.12 - Step 5: Solve for x
x = 123,723,332,079.12/403,972.80 - Step 6: Final answer
x = 306,266.49
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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.