Finding the Fourth Proportional to 286,325.16, 429,163.68 and 145,786.92
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Solution
The fourth proportional to 286,325.16, 429,163.68 and 145,786.92 is: 218,515.38
Step by Step Solution
- Step 1: Write the proportion equation
286,325.16 : 429,163.68 = 145,786.92 : x - Step 2: Convert to fraction form
286,325.16/429,163.68 = 145,786.92/x - Step 3: Cross multiply
286,325.16x = 429,163.68 × 145,786.92 - Step 4: Simplify right side
286,325.16x = 62,566,451,083.07 - Step 5: Solve for x
x = 62,566,451,083.07/286,325.16 - Step 6: Final answer
x = 218,515.38
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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.