Finding the Fourth Proportional to 304,643.60, 420,378.98 and 168,672.58
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Solution
The fourth proportional to 304,643.60, 420,378.98 and 168,672.58 is: 232,751.99
Step by Step Solution
- Step 1: Write the proportion equation
304,643.60 : 420,378.98 = 168,672.58 : x - Step 2: Convert to fraction form
304,643.60/420,378.98 = 168,672.58/x - Step 3: Cross multiply
304,643.60x = 420,378.98 × 168,672.58 - Step 4: Simplify right side
304,643.60x = 70,906,405,240.06 - Step 5: Solve for x
x = 70,906,405,240.06/304,643.60 - Step 6: Final answer
x = 232,751.99
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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.