Finding the Fourth Proportional to 193,231.16, 266,378.67 and 135,695.28
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Solution
The fourth proportional to 193,231.16, 266,378.67 and 135,695.28 is: 187,062.63
Step by Step Solution
- Step 1: Write the proportion equation
193,231.16 : 266,378.67 = 135,695.28 : x - Step 2: Convert to fraction form
193,231.16/266,378.67 = 135,695.28/x - Step 3: Cross multiply
193,231.16x = 266,378.67 × 135,695.28 - Step 4: Simplify right side
193,231.16x = 36,146,328,211.68 - Step 5: Solve for x
x = 36,146,328,211.68/193,231.16 - Step 6: Final answer
x = 187,062.63
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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.