Finding the Fourth Proportional to 355,722.64, 491,062.67 and 210,482.75
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Solution
The fourth proportional to 355,722.64, 491,062.67 and 210,482.75 is: 290,564.09
Step by Step Solution
- Step 1: Write the proportion equation
355,722.64 : 491,062.67 = 210,482.75 : x - Step 2: Convert to fraction form
355,722.64/491,062.67 = 210,482.75/x - Step 3: Cross multiply
355,722.64x = 491,062.67 × 210,482.75 - Step 4: Simplify right side
355,722.64x = 103,360,222,957.81 - Step 5: Solve for x
x = 103,360,222,957.81/355,722.64 - Step 6: Final answer
x = 290,564.09
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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.