Finding the Fourth Proportional to 425,428.86, 637,917.56 and 125,868.18
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Solution
The fourth proportional to 425,428.86, 637,917.56 and 125,868.18 is: 188,735.49
Step by Step Solution
- Step 1: Write the proportion equation
425,428.86 : 637,917.56 = 125,868.18 : x - Step 2: Convert to fraction form
425,428.86/637,917.56 = 125,868.18/x - Step 3: Cross multiply
425,428.86x = 637,917.56 × 125,868.18 - Step 4: Simplify right side
425,428.86x = 80,293,522,267.24 - Step 5: Solve for x
x = 80,293,522,267.24/425,428.86 - Step 6: Final answer
x = 188,735.49
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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.