Finding the Fourth Proportional to 318,160.79, 476,972.07 and 138,110.90
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Solution
The fourth proportional to 318,160.79, 476,972.07 and 138,110.90 is: 207,049.53
Step by Step Solution
- Step 1: Write the proportion equation
318,160.79 : 476,972.07 = 138,110.90 : x - Step 2: Convert to fraction form
318,160.79/476,972.07 = 138,110.90/x - Step 3: Cross multiply
318,160.79x = 476,972.07 × 138,110.90 - Step 4: Simplify right side
318,160.79x = 65,875,039,477.70 - Step 5: Solve for x
x = 65,875,039,477.70/318,160.79 - Step 6: Final answer
x = 207,049.53
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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.