Finding the Fourth Proportional to 212,690.71, 293,502.58 and 117,181.99
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Solution
The fourth proportional to 212,690.71, 293,502.58 and 117,181.99 is: 161,705.31
Step by Step Solution
- Step 1: Write the proportion equation
212,690.71 : 293,502.58 = 117,181.99 : x - Step 2: Convert to fraction form
212,690.71/293,502.58 = 117,181.99/x - Step 3: Cross multiply
212,690.71x = 293,502.58 × 117,181.99 - Step 4: Simplify right side
212,690.71x = 34,393,216,394.53 - Step 5: Solve for x
x = 34,393,216,394.53/212,690.71 - Step 6: Final answer
x = 161,705.31
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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.