Finding the Fourth Proportional to 212,368.08, 318,699.66 and 137,302.04
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Solution
The fourth proportional to 212,368.08, 318,699.66 and 137,302.04 is: 206,048.45
Step by Step Solution
- Step 1: Write the proportion equation
212,368.08 : 318,699.66 = 137,302.04 : x - Step 2: Convert to fraction form
212,368.08/318,699.66 = 137,302.04/x - Step 3: Cross multiply
212,368.08x = 318,699.66 × 137,302.04 - Step 4: Simplify right side
212,368.08x = 43,758,112,984.25 - Step 5: Solve for x
x = 43,758,112,984.25/212,368.08 - Step 6: Final answer
x = 206,048.45
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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.