Finding the Fourth Proportional to 287,871.84, 397,265.28 and 160,555.68
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Solution
The fourth proportional to 287,871.84, 397,265.28 and 160,555.68 is: 221,568.03
Step by Step Solution
- Step 1: Write the proportion equation
287,871.84 : 397,265.28 = 160,555.68 : x - Step 2: Convert to fraction form
287,871.84/397,265.28 = 160,555.68/x - Step 3: Cross multiply
287,871.84x = 397,265.28 × 160,555.68 - Step 4: Simplify right side
287,871.84x = 63,783,197,170.79 - Step 5: Solve for x
x = 63,783,197,170.79/287,871.84 - Step 6: Final answer
x = 221,568.03
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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.