Finding the Fourth Proportional to 260,949.36, 391,421.97 and 155,067.12
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Solution
The fourth proportional to 260,949.36, 391,421.97 and 155,067.12 is: 232,599.45
Step by Step Solution
- Step 1: Write the proportion equation
260,949.36 : 391,421.97 = 155,067.12 : x - Step 2: Convert to fraction form
260,949.36/391,421.97 = 155,067.12/x - Step 3: Cross multiply
260,949.36x = 391,421.97 × 155,067.12 - Step 4: Simplify right side
260,949.36x = 60,696,677,592.63 - Step 5: Solve for x
x = 60,696,677,592.63/260,949.36 - Step 6: Final answer
x = 232,599.45
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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.