Finding the Fourth Proportional to 287,521.67, 396,782.58 and 158,464.74
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Solution
The fourth proportional to 287,521.67, 396,782.58 and 158,464.74 is: 218,682.82
Step by Step Solution
- Step 1: Write the proportion equation
287,521.67 : 396,782.58 = 158,464.74 : x - Step 2: Convert to fraction form
287,521.67/396,782.58 = 158,464.74/x - Step 3: Cross multiply
287,521.67x = 396,782.58 × 158,464.74 - Step 4: Simplify right side
287,521.67x = 62,876,048,376.23 - Step 5: Solve for x
x = 62,876,048,376.23/287,521.67 - Step 6: Final answer
x = 218,682.82
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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.