Finding the Fourth Proportional to 287,953.18, 397,347.83 and 160,636.97
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Solution
The fourth proportional to 287,953.18, 397,347.83 and 160,636.97 is: 221,663.65
Step by Step Solution
- Step 1: Write the proportion equation
287,953.18 : 397,347.83 = 160,636.97 : x - Step 2: Convert to fraction form
287,953.18/397,347.83 = 160,636.97/x - Step 3: Cross multiply
287,953.18x = 397,347.83 × 160,636.97 - Step 4: Simplify right side
287,953.18x = 63,828,752,239.85 - Step 5: Solve for x
x = 63,828,752,239.85/287,953.18 - Step 6: Final answer
x = 221,663.65
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1.5x scale
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.