Finding the Fourth Proportional to 197,491.65, 272,531.74 and 112,636.05
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Solution
The fourth proportional to 197,491.65, 272,531.74 and 112,636.05 is: 155,433.91
Step by Step Solution
- Step 1: Write the proportion equation
197,491.65 : 272,531.74 = 112,636.05 : x - Step 2: Convert to fraction form
197,491.65/272,531.74 = 112,636.05/x - Step 3: Cross multiply
197,491.65x = 272,531.74 × 112,636.05 - Step 4: Simplify right side
197,491.65x = 30,696,898,693.23 - Step 5: Solve for x
x = 30,696,898,693.23/197,491.65 - Step 6: Final answer
x = 155,433.91
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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.