Finding the Fourth Proportional to 256,138.07, 353,468.87 and 141,423.85
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Solution
The fourth proportional to 256,138.07, 353,468.87 and 141,423.85 is: 195,163.99
Step by Step Solution
- Step 1: Write the proportion equation
256,138.07 : 353,468.87 = 141,423.85 : x - Step 2: Convert to fraction form
256,138.07/353,468.87 = 141,423.85/x - Step 3: Cross multiply
256,138.07x = 353,468.87 × 141,423.85 - Step 4: Simplify right side
256,138.07x = 49,988,926,683.21 - Step 5: Solve for x
x = 49,988,926,683.21/256,138.07 - Step 6: Final answer
x = 195,163.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.