Finding the Fourth Proportional to 287,789.52, 397,151.84 and 160,473.68
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Solution
The fourth proportional to 287,789.52, 397,151.84 and 160,473.68 is: 221,454.96
Step by Step Solution
- Step 1: Write the proportion equation
287,789.52 : 397,151.84 = 160,473.68 : x - Step 2: Convert to fraction form
287,789.52/397,151.84 = 160,473.68/x - Step 3: Cross multiply
287,789.52x = 397,151.84 × 160,473.68 - Step 4: Simplify right side
287,789.52x = 63,732,417,283.57 - Step 5: Solve for x
x = 63,732,417,283.57/287,789.52 - Step 6: Final answer
x = 221,454.96
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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.