Finding the Fourth Proportional to 258,773.78, 388,138.36 and 157,545.62
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Solution
The fourth proportional to 258,773.78, 388,138.36 and 157,545.62 is: 236,304.85
Step by Step Solution
- Step 1: Write the proportion equation
258,773.78 : 388,138.36 = 157,545.62 : x - Step 2: Convert to fraction form
258,773.78/388,138.36 = 157,545.62/x - Step 3: Cross multiply
258,773.78x = 388,138.36 × 157,545.62 - Step 4: Simplify right side
258,773.78x = 61,149,498,571.98 - Step 5: Solve for x
x = 61,149,498,571.98/258,773.78 - Step 6: Final answer
x = 236,304.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.