Finding the Fourth Proportional to 315,349.80, 435,544.74 and 229,690.44
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Solution
The fourth proportional to 315,349.80, 435,544.74 and 229,690.44 is: 317,236.49
Step by Step Solution
- Step 1: Write the proportion equation
315,349.80 : 435,544.74 = 229,690.44 : x - Step 2: Convert to fraction form
315,349.80/435,544.74 = 229,690.44/x - Step 3: Cross multiply
315,349.80x = 435,544.74 × 229,690.44 - Step 4: Simplify right side
315,349.80x = 100,040,462,970.29 - Step 5: Solve for x
x = 100,040,462,970.29/315,349.80 - Step 6: Final answer
x = 317,236.49
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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.