Finding the Fourth Proportional to 287,873.84, 397,268.04 and 160,557.68
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Solution
The fourth proportional to 287,873.84, 397,268.04 and 160,557.68 is: 221,570.79
Step by Step Solution
- Step 1: Write the proportion equation
287,873.84 : 397,268.04 = 160,557.68 : x - Step 2: Convert to fraction form
287,873.84/397,268.04 = 160,557.68/x - Step 3: Cross multiply
287,873.84x = 397,268.04 × 160,557.68 - Step 4: Simplify right side
287,873.84x = 63,784,434,840.55 - Step 5: Solve for x
x = 63,784,434,840.55/287,873.84 - Step 6: Final answer
x = 221,570.79
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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.