Finding the Fourth Proportional to 310,718.69, 428,850.68 and 194,486.07
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Solution
The fourth proportional to 310,718.69, 428,850.68 and 194,486.07 is: 268,427.63
Step by Step Solution
- Step 1: Write the proportion equation
310,718.69 : 428,850.68 = 194,486.07 : x - Step 2: Convert to fraction form
310,718.69/428,850.68 = 194,486.07/x - Step 3: Cross multiply
310,718.69x = 428,850.68 × 194,486.07 - Step 4: Simplify right side
310,718.69x = 83,405,480,253.34 - Step 5: Solve for x
x = 83,405,480,253.34/310,718.69 - Step 6: Final answer
x = 268,427.63
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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.