Finding the Fourth Proportional to 245,804.37, 368,707.74 and 85,879.62
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Solution
The fourth proportional to 245,804.37, 368,707.74 and 85,879.62 is: 128,819.84
Step by Step Solution
- Step 1: Write the proportion equation
245,804.37 : 368,707.74 = 85,879.62 : x - Step 2: Convert to fraction form
245,804.37/368,707.74 = 85,879.62/x - Step 3: Cross multiply
245,804.37x = 368,707.74 × 85,879.62 - Step 4: Simplify right side
245,804.37x = 31,664,480,602.26 - Step 5: Solve for x
x = 31,664,480,602.26/245,804.37 - Step 6: Final answer
x = 128,819.84
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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.