Finding the Fourth Proportional to 312,583.12, 431,362.98 and 169,345.96
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Solution
The fourth proportional to 312,583.12, 431,362.98 and 169,345.96 is: 233,696.49
Step by Step Solution
- Step 1: Write the proportion equation
312,583.12 : 431,362.98 = 169,345.96 : x - Step 2: Convert to fraction form
312,583.12/431,362.98 = 169,345.96/x - Step 3: Cross multiply
312,583.12x = 431,362.98 × 169,345.96 - Step 4: Simplify right side
312,583.12x = 73,049,577,956.56 - Step 5: Solve for x
x = 73,049,577,956.56/312,583.12 - Step 6: Final answer
x = 233,696.49
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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.