Finding the Fourth Proportional to 248,781.38, 343,318.91 and 135,604.13
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Solution
The fourth proportional to 248,781.38, 343,318.91 and 135,604.13 is: 187,134.02
Step by Step Solution
- Step 1: Write the proportion equation
248,781.38 : 343,318.91 = 135,604.13 : x - Step 2: Convert to fraction form
248,781.38/343,318.91 = 135,604.13/x - Step 3: Cross multiply
248,781.38x = 343,318.91 × 135,604.13 - Step 4: Simplify right side
248,781.38x = 46,555,459,708.48 - Step 5: Solve for x
x = 46,555,459,708.48/248,781.38 - Step 6: Final answer
x = 187,134.02
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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.