Finding the Fourth Proportional to 387,979.73, 581,994.18 and 121,750.75
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Solution
The fourth proportional to 387,979.73, 581,994.18 and 121,750.75 is: 182,633.84
Step by Step Solution
- Step 1: Write the proportion equation
387,979.73 : 581,994.18 = 121,750.75 : x - Step 2: Convert to fraction form
387,979.73/581,994.18 = 121,750.75/x - Step 3: Cross multiply
387,979.73x = 581,994.18 × 121,750.75 - Step 4: Simplify right side
387,979.73x = 70,858,225,305.04 - Step 5: Solve for x
x = 70,858,225,305.04/387,979.73 - Step 6: Final answer
x = 182,633.84
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.