Finding the Fourth Proportional to 235,476.90, 324,964.26 and 128,053.20
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Solution
The fourth proportional to 235,476.90, 324,964.26 and 128,053.20 is: 176,716.75
Step by Step Solution
- Step 1: Write the proportion equation
235,476.90 : 324,964.26 = 128,053.20 : x - Step 2: Convert to fraction form
235,476.90/324,964.26 = 128,053.20/x - Step 3: Cross multiply
235,476.90x = 324,964.26 × 128,053.20 - Step 4: Simplify right side
235,476.90x = 41,612,713,378.63 - Step 5: Solve for x
x = 41,612,713,378.63/235,476.90 - Step 6: Final answer
x = 176,716.75
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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.