Finding the Fourth Proportional to 339,434.58, 509,151.87 and 86,715.63
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Solution
The fourth proportional to 339,434.58, 509,151.87 and 86,715.63 is: 130,073.44
Step by Step Solution
- Step 1: Write the proportion equation
339,434.58 : 509,151.87 = 86,715.63 : x - Step 2: Convert to fraction form
339,434.58/509,151.87 = 86,715.63/x - Step 3: Cross multiply
339,434.58x = 509,151.87 × 86,715.63 - Step 4: Simplify right side
339,434.58x = 44,151,425,172.73 - Step 5: Solve for x
x = 44,151,425,172.73/339,434.58 - Step 6: Final answer
x = 130,073.44
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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.