Finding the Fourth Proportional to 278,472.34, 384,292.20 and 151,147.99
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Solution
The fourth proportional to 278,472.34, 384,292.20 and 151,147.99 is: 208,584.43
Step by Step Solution
- Step 1: Write the proportion equation
278,472.34 : 384,292.20 = 151,147.99 : x - Step 2: Convert to fraction form
278,472.34/384,292.20 = 151,147.99/x - Step 3: Cross multiply
278,472.34x = 384,292.20 × 151,147.99 - Step 4: Simplify right side
278,472.34x = 58,084,993,602.68 - Step 5: Solve for x
x = 58,084,993,602.68/278,472.34 - Step 6: Final answer
x = 208,584.43
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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.