Finding the Fourth Proportional to 312,708.06, 431,537.47 and 169,468.09
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Solution
The fourth proportional to 312,708.06, 431,537.47 and 169,468.09 is: 233,866.15
Step by Step Solution
- Step 1: Write the proportion equation
312,708.06 : 431,537.47 = 169,468.09 : x - Step 2: Convert to fraction form
312,708.06/431,537.47 = 169,468.09/x - Step 3: Cross multiply
312,708.06x = 431,537.47 × 169,468.09 - Step 4: Simplify right side
312,708.06x = 73,131,829,301.82 - Step 5: Solve for x
x = 73,131,829,301.82/312,708.06 - Step 6: Final answer
x = 233,866.15
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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.