Finding the Fourth Proportional to 309,297.88, 427,690.02 and 245,525.08
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Solution
The fourth proportional to 309,297.88, 427,690.02 and 245,525.08 is: 339,506.45
Step by Step Solution
- Step 1: Write the proportion equation
309,297.88 : 427,690.02 = 245,525.08 : x - Step 2: Convert to fraction form
309,297.88/427,690.02 = 245,525.08/x - Step 3: Cross multiply
309,297.88x = 427,690.02 × 245,525.08 - Step 4: Simplify right side
309,297.88x = 105,008,626,375.70 - Step 5: Solve for x
x = 105,008,626,375.70/309,297.88 - Step 6: Final answer
x = 339,506.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.