Finding the Fourth Proportional to 255,087.55, 382,637.63 and 121,981.87
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Solution
The fourth proportional to 255,087.55, 382,637.63 and 121,981.87 is: 182,975.82
Step by Step Solution
- Step 1: Write the proportion equation
255,087.55 : 382,637.63 = 121,981.87 : x - Step 2: Convert to fraction form
255,087.55/382,637.63 = 121,981.87/x - Step 3: Cross multiply
255,087.55x = 382,637.63 × 121,981.87 - Step 4: Simplify right side
255,087.55x = 46,674,853,639.77 - Step 5: Solve for x
x = 46,674,853,639.77/255,087.55 - Step 6: Final answer
x = 182,975.82
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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.