Finding the Fourth Proportional to 287,519.91, 396,780.16 and 158,462.99
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Solution
The fourth proportional to 287,519.91, 396,780.16 and 158,462.99 is: 218,680.40
Step by Step Solution
- Step 1: Write the proportion equation
287,519.91 : 396,780.16 = 158,462.99 : x - Step 2: Convert to fraction form
287,519.91/396,780.16 = 158,462.99/x - Step 3: Cross multiply
287,519.91x = 396,780.16 × 158,462.99 - Step 4: Simplify right side
287,519.91x = 62,874,970,228.38 - Step 5: Solve for x
x = 62,874,970,228.38/287,519.91 - Step 6: Final answer
x = 218,680.40
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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.