Finding the Fourth Proportional to 387,747.16, 581,619.86 and 121,527.96
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Solution
The fourth proportional to 387,747.16, 581,619.86 and 121,527.96 is: 182,291.66
Step by Step Solution
- Step 1: Write the proportion equation
387,747.16 : 581,619.86 = 121,527.96 : x - Step 2: Convert to fraction form
387,747.16/581,619.86 = 121,527.96/x - Step 3: Cross multiply
387,747.16x = 581,619.86 × 121,527.96 - Step 4: Simplify right side
387,747.16x = 70,683,075,081.29 - Step 5: Solve for x
x = 70,683,075,081.29/387,747.16 - Step 6: Final answer
x = 182,291.66
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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.