Finding the Fourth Proportional to 387,757.68, 581,637.42 and 117,888.18
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Solution
The fourth proportional to 387,757.68, 581,637.42 and 117,888.18 is: 176,832.54
Step by Step Solution
- Step 1: Write the proportion equation
387,757.68 : 581,637.42 = 117,888.18 : x - Step 2: Convert to fraction form
387,757.68/581,637.42 = 117,888.18/x - Step 3: Cross multiply
387,757.68x = 581,637.42 × 117,888.18 - Step 4: Simplify right side
387,757.68x = 68,568,176,863.70 - Step 5: Solve for x
x = 68,568,176,863.70/387,757.68 - Step 6: Final answer
x = 176,832.54
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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.