Finding the Fourth Proportional to 311,415.06, 429,752.77 and 168,175.09
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Solution
The fourth proportional to 311,415.06, 429,752.77 and 168,175.09 is: 232,081.62
Step by Step Solution
- Step 1: Write the proportion equation
311,415.06 : 429,752.77 = 168,175.09 : x - Step 2: Convert to fraction form
311,415.06/429,752.77 = 168,175.09/x - Step 3: Cross multiply
311,415.06x = 429,752.77 × 168,175.09 - Step 4: Simplify right side
311,415.06x = 72,273,710,772.50 - Step 5: Solve for x
x = 72,273,710,772.50/311,415.06 - Step 6: Final answer
x = 232,081.62
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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.