Finding the Fourth Proportional to 642,119.11, 963,316.70 and 186,718.26
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Solution
The fourth proportional to 642,119.11, 963,316.70 and 186,718.26 is: 280,117.53
Step by Step Solution
- Step 1: Write the proportion equation
642,119.11 : 963,316.70 = 186,718.26 : x - Step 2: Convert to fraction form
642,119.11/963,316.70 = 186,718.26/x - Step 3: Cross multiply
642,119.11x = 963,316.70 × 186,718.26 - Step 4: Simplify right side
642,119.11x = 179,868,818,052.94 - Step 5: Solve for x
x = 179,868,818,052.94/642,119.11 - Step 6: Final answer
x = 280,117.53
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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.