Finding the Fourth Proportional to 318,203.26, 439,116.93 and 236,895.05
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Solution
The fourth proportional to 318,203.26, 439,116.93 and 236,895.05 is: 326,912.52
Step by Step Solution
- Step 1: Write the proportion equation
318,203.26 : 439,116.93 = 236,895.05 : x - Step 2: Convert to fraction form
318,203.26/439,116.93 = 236,895.05/x - Step 3: Cross multiply
318,203.26x = 439,116.93 × 236,895.05 - Step 4: Simplify right side
318,203.26x = 104,024,628,185.99 - Step 5: Solve for x
x = 104,024,628,185.99/318,203.26 - Step 6: Final answer
x = 326,912.52
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1.5x scale
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.