Finding the Fourth Proportional to 266,129.70, 399,194.55 and 253,007.70
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Solution
The fourth proportional to 266,129.70, 399,194.55 and 253,007.70 is: 379,511.55
Step by Step Solution
- Step 1: Write the proportion equation
266,129.70 : 399,194.55 = 253,007.70 : x - Step 2: Convert to fraction form
266,129.70/399,194.55 = 253,007.70/x - Step 3: Cross multiply
266,129.70x = 399,194.55 × 253,007.70 - Step 4: Simplify right side
266,129.70x = 100,999,294,948.04 - Step 5: Solve for x
x = 100,999,294,948.04/266,129.70 - Step 6: Final answer
x = 379,511.55
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1.5x scale
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.