Finding the Fourth Proportional to 212.84, 293.58 and 135.08
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Solution
The fourth proportional to 212.84, 293.58 and 135.08 is: 186.32
Step by Step Solution
- Step 1: Write the proportion equation
212.84 : 293.58 = 135.08 : x - Step 2: Convert to fraction form
212.84/293.58 = 135.08/x - Step 3: Cross multiply
212.84x = 293.58 × 135.08 - Step 4: Simplify right side
212.84x = 39,656.79 - Step 5: Solve for x
x = 39,656.79/212.84 - Step 6: Final answer
x = 186.32
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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.