Finding the Fourth Proportional to 226,578.88, 312,590.36 and 129,730.98
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Solution
The fourth proportional to 226,578.88, 312,590.36 and 129,730.98 is: 178,978.08
Step by Step Solution
- Step 1: Write the proportion equation
226,578.88 : 312,590.36 = 129,730.98 : x - Step 2: Convert to fraction form
226,578.88/312,590.36 = 129,730.98/x - Step 3: Cross multiply
226,578.88x = 312,590.36 × 129,730.98 - Step 4: Simplify right side
226,578.88x = 40,552,653,741.35 - Step 5: Solve for x
x = 40,552,653,741.35/226,578.88 - Step 6: Final answer
x = 178,978.08
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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.