Finding the Fourth Proportional to 316,990.79, 437,492.15 and 196,170.99
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Solution
The fourth proportional to 316,990.79, 437,492.15 and 196,170.99 is: 270,743.73
Step by Step Solution
- Step 1: Write the proportion equation
316,990.79 : 437,492.15 = 196,170.99 : x - Step 2: Convert to fraction form
316,990.79/437,492.15 = 196,170.99/x - Step 3: Cross multiply
316,990.79x = 437,492.15 × 196,170.99 - Step 4: Simplify right side
316,990.79x = 85,823,268,182.73 - Step 5: Solve for x
x = 85,823,268,182.73/316,990.79 - Step 6: Final answer
x = 270,743.73
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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.