Finding the Fourth Proportional to 286,013.70, 429,023.79 and 86,336.01
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Solution
The fourth proportional to 286,013.70, 429,023.79 and 86,336.01 is: 129,504.99
Step by Step Solution
- Step 1: Write the proportion equation
286,013.70 : 429,023.79 = 86,336.01 : x - Step 2: Convert to fraction form
286,013.70/429,023.79 = 86,336.01/x - Step 3: Cross multiply
286,013.70x = 429,023.79 × 86,336.01 - Step 4: Simplify right side
286,013.70x = 37,040,202,223.68 - Step 5: Solve for x
x = 37,040,202,223.68/286,013.70 - Step 6: Final answer
x = 129,504.99
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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.