Finding the Fourth Proportional to 211,762.41, 317,448.68 and 91,743.95
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Solution
The fourth proportional to 211,762.41, 317,448.68 and 91,743.95 is: 137,531.46
Step by Step Solution
- Step 1: Write the proportion equation
211,762.41 : 317,448.68 = 91,743.95 : x - Step 2: Convert to fraction form
211,762.41/317,448.68 = 91,743.95/x - Step 3: Cross multiply
211,762.41x = 317,448.68 × 91,743.95 - Step 4: Simplify right side
211,762.41x = 29,123,993,779.52 - Step 5: Solve for x
x = 29,123,993,779.52/211,762.41 - Step 6: Final answer
x = 137,531.46
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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.