Finding the Fourth Proportional to 212,963.65, 318,899.13 and 206,656.99
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Solution
The fourth proportional to 212,963.65, 318,899.13 and 206,656.99 is: 309,455.32
Step by Step Solution
- Step 1: Write the proportion equation
212,963.65 : 318,899.13 = 206,656.99 : x - Step 2: Convert to fraction form
212,963.65/318,899.13 = 206,656.99/x - Step 3: Cross multiply
212,963.65x = 318,899.13 × 206,656.99 - Step 4: Simplify right side
212,963.65x = 65,902,734,319.42 - Step 5: Solve for x
x = 65,902,734,319.42/212,963.65 - Step 6: Final answer
x = 309,455.32
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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.