Finding the Fourth Proportional to 343.64, 473.99 and 212.42
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Solution
The fourth proportional to 343.64, 473.99 and 212.42 is: 292.99
Step by Step Solution
- Step 1: Write the proportion equation
343.64 : 473.99 = 212.42 : x - Step 2: Convert to fraction form
343.64/473.99 = 212.42/x - Step 3: Cross multiply
343.64x = 473.99 × 212.42 - Step 4: Simplify right side
343.64x = 100,681.52 - Step 5: Solve for x
x = 100,681.52/343.64 - Step 6: Final answer
x = 292.99
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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.