Finding the Fourth Proportional to 312,171.06, 430,799.18 and 168,934.17
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Solution
The fourth proportional to 312,171.06, 430,799.18 and 168,934.17 is: 233,130.84
Step by Step Solution
- Step 1: Write the proportion equation
312,171.06 : 430,799.18 = 168,934.17 : x - Step 2: Convert to fraction form
312,171.06/430,799.18 = 168,934.17/x - Step 3: Cross multiply
312,171.06x = 430,799.18 × 168,934.17 - Step 4: Simplify right side
312,171.06x = 72,776,702,680.81 - Step 5: Solve for x
x = 72,776,702,680.81/312,171.06 - Step 6: Final answer
x = 233,130.84
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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.