Finding the Fourth Proportional to 339,717.74, 509,650.14 and 103,078.26
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Solution
The fourth proportional to 339,717.74, 509,650.14 and 103,078.26 is: 154,639.70
Step by Step Solution
- Step 1: Write the proportion equation
339,717.74 : 509,650.14 = 103,078.26 : x - Step 2: Convert to fraction form
339,717.74/509,650.14 = 103,078.26/x - Step 3: Cross multiply
339,717.74x = 509,650.14 × 103,078.26 - Step 4: Simplify right side
339,717.74x = 52,533,849,639.96 - Step 5: Solve for x
x = 52,533,849,639.96/339,717.74 - Step 6: Final answer
x = 154,639.70
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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.