Finding the Fourth Proportional to 310,364.12, 465,536.97 and 85,738.07
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Solution
The fourth proportional to 310,364.12, 465,536.97 and 85,738.07 is: 128,604.56
Step by Step Solution
- Step 1: Write the proportion equation
310,364.12 : 465,536.97 = 85,738.07 : x - Step 2: Convert to fraction form
310,364.12/465,536.97 = 85,738.07/x - Step 3: Cross multiply
310,364.12x = 465,536.97 × 85,738.07 - Step 4: Simplify right side
310,364.12x = 39,914,238,993.76 - Step 5: Solve for x
x = 39,914,238,993.76/310,364.12 - Step 6: Final answer
x = 128,604.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.