Finding the Fourth Proportional to 220,579.94, 304,465.52 and 129,965.18
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Solution
The fourth proportional to 220,579.94, 304,465.52 and 129,965.18 is: 179,390.35
Step by Step Solution
- Step 1: Write the proportion equation
220,579.94 : 304,465.52 = 129,965.18 : x - Step 2: Convert to fraction form
220,579.94/304,465.52 = 129,965.18/x - Step 3: Cross multiply
220,579.94x = 304,465.52 × 129,965.18 - Step 4: Simplify right side
220,579.94x = 39,569,914,182.12 - Step 5: Solve for x
x = 39,569,914,182.12/220,579.94 - Step 6: Final answer
x = 179,390.35
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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.