Finding the Fourth Proportional to 211,993.12, 318,098.63 and 117,205.71
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Solution
The fourth proportional to 211,993.12, 318,098.63 and 117,205.71 is: 175,868.80
Step by Step Solution
- Step 1: Write the proportion equation
211,993.12 : 318,098.63 = 117,205.71 : x - Step 2: Convert to fraction form
211,993.12/318,098.63 = 117,205.71/x - Step 3: Cross multiply
211,993.12x = 318,098.63 × 117,205.71 - Step 4: Simplify right side
211,993.12x = 37,282,975,779.18 - Step 5: Solve for x
x = 37,282,975,779.18/211,993.12 - Step 6: Final answer
x = 175,868.80
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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.