Finding the Fourth Proportional to 235,491.26, 324,980.12 and 128,062.31
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Solution
The fourth proportional to 235,491.26, 324,980.12 and 128,062.31 is: 176,727.17
Step by Step Solution
- Step 1: Write the proportion equation
235,491.26 : 324,980.12 = 128,062.31 : x - Step 2: Convert to fraction form
235,491.26/324,980.12 = 128,062.31/x - Step 3: Cross multiply
235,491.26x = 324,980.12 × 128,062.31 - Step 4: Simplify right side
235,491.26x = 41,617,704,230.97 - Step 5: Solve for x
x = 41,617,704,230.97/235,491.26 - Step 6: Final answer
x = 176,727.17
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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.