Finding the Fourth Proportional to 245,879.40, 368,768.70 and 68,341.80
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Solution
The fourth proportional to 245,879.40, 368,768.70 and 68,341.80 is: 102,498.69
Step by Step Solution
- Step 1: Write the proportion equation
245,879.40 : 368,768.70 = 68,341.80 : x - Step 2: Convert to fraction form
245,879.40/368,768.70 = 68,341.80/x - Step 3: Cross multiply
245,879.40x = 368,768.70 × 68,341.80 - Step 4: Simplify right side
245,879.40x = 25,202,316,741.66 - Step 5: Solve for x
x = 25,202,316,741.66/245,879.40 - Step 6: Final answer
x = 102,498.69
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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.