Finding the Fourth Proportional to 243,708.40, 336,326.77 and 136,278.18
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Solution
The fourth proportional to 243,708.40, 336,326.77 and 136,278.18 is: 188,069.02
Step by Step Solution
- Step 1: Write the proportion equation
243,708.40 : 336,326.77 = 136,278.18 : x - Step 2: Convert to fraction form
243,708.40/336,326.77 = 136,278.18/x - Step 3: Cross multiply
243,708.40x = 336,326.77 × 136,278.18 - Step 4: Simplify right side
243,708.40x = 45,833,999,370.14 - Step 5: Solve for x
x = 45,833,999,370.14/243,708.40 - Step 6: Final answer
x = 188,069.02
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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.