Finding the Fourth Proportional to 197,490.66, 272,530.36 and 112,635.06
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Solution
The fourth proportional to 197,490.66, 272,530.36 and 112,635.06 is: 155,432.53
Step by Step Solution
- Step 1: Write the proportion equation
197,490.66 : 272,530.36 = 112,635.06 : x - Step 2: Convert to fraction form
197,490.66/272,530.36 = 112,635.06/x - Step 3: Cross multiply
197,490.66x = 272,530.36 × 112,635.06 - Step 4: Simplify right side
197,490.66x = 30,696,473,450.42 - Step 5: Solve for x
x = 30,696,473,450.42/197,490.66 - Step 6: Final answer
x = 155,432.53
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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.