Finding the Fourth Proportional to 387,278.05, 580,917.53 and 121,039.96
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Solution
The fourth proportional to 387,278.05, 580,917.53 and 121,039.96 is: 181,560.08
Step by Step Solution
- Step 1: Write the proportion equation
387,278.05 : 580,917.53 = 121,039.96 : x - Step 2: Convert to fraction form
387,278.05/580,917.53 = 121,039.96/x - Step 3: Cross multiply
387,278.05x = 580,917.53 × 121,039.96 - Step 4: Simplify right side
387,278.05x = 70,314,232,537.01 - Step 5: Solve for x
x = 70,314,232,537.01/387,278.05 - Step 6: Final answer
x = 181,560.08
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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.