Finding the Fourth Proportional to 421,887.93, 582,206.87 and 228,295.62
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Solution
The fourth proportional to 421,887.93, 582,206.87 and 228,295.62 is: 315,048.78
Step by Step Solution
- Step 1: Write the proportion equation
421,887.93 : 582,206.87 = 228,295.62 : x - Step 2: Convert to fraction form
421,887.93/582,206.87 = 228,295.62/x - Step 3: Cross multiply
421,887.93x = 582,206.87 × 228,295.62 - Step 4: Simplify right side
421,887.93x = 132,915,278,354.91 - Step 5: Solve for x
x = 132,915,278,354.91/421,887.93 - Step 6: Final answer
x = 315,048.78
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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.