Finding the Fourth Proportional to 287,878.35, 397,272.81 and 160,562.15
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Solution
The fourth proportional to 287,878.35, 397,272.81 and 160,562.15 is: 221,576.14
Step by Step Solution
- Step 1: Write the proportion equation
287,878.35 : 397,272.81 = 160,562.15 : x - Step 2: Convert to fraction form
287,878.35/397,272.81 = 160,562.15/x - Step 3: Cross multiply
287,878.35x = 397,272.81 × 160,562.15 - Step 4: Simplify right side
287,878.35x = 63,786,974,523.78 - Step 5: Solve for x
x = 63,786,974,523.78/287,878.35 - Step 6: Final answer
x = 221,576.14
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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.