Finding the Fourth Proportional to 353,160.94, 530,074.26 and 128,738.26
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Solution
The fourth proportional to 353,160.94, 530,074.26 and 128,738.26 is: 193,228.72
Step by Step Solution
- Step 1: Write the proportion equation
353,160.94 : 530,074.26 = 128,738.26 : x - Step 2: Convert to fraction form
353,160.94/530,074.26 = 128,738.26/x - Step 3: Cross multiply
353,160.94x = 530,074.26 × 128,738.26 - Step 4: Simplify right side
353,160.94x = 68,240,837,903.19 - Step 5: Solve for x
x = 68,240,837,903.19/353,160.94 - Step 6: Final answer
x = 193,228.72
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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.