Finding the Fourth Proportional to 425,626.97, 638,533.86 and 126,130.99
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Solution
The fourth proportional to 425,626.97, 638,533.86 and 126,130.99 is: 189,224.16
Step by Step Solution
- Step 1: Write the proportion equation
425,626.97 : 638,533.86 = 126,130.99 : x - Step 2: Convert to fraction form
425,626.97/638,533.86 = 126,130.99/x - Step 3: Cross multiply
425,626.97x = 638,533.86 × 126,130.99 - Step 4: Simplify right side
425,626.97x = 80,538,907,910.32 - Step 5: Solve for x
x = 80,538,907,910.32/425,626.97 - Step 6: Final answer
x = 189,224.16
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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.