Finding the Fourth Proportional to 357,879.09, 536,804.61 and 121,221.76
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Solution
The fourth proportional to 357,879.09, 536,804.61 and 121,221.76 is: 181,827.89
Step by Step Solution
- Step 1: Write the proportion equation
357,879.09 : 536,804.61 = 121,221.76 : x - Step 2: Convert to fraction form
357,879.09/536,804.61 = 121,221.76/x - Step 3: Cross multiply
357,879.09x = 536,804.61 × 121,221.76 - Step 4: Simplify right side
357,879.09x = 65,072,399,600.31 - Step 5: Solve for x
x = 65,072,399,600.31/357,879.09 - Step 6: Final answer
x = 181,827.89
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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.