Finding the Fourth Proportional to 291,703.76, 402,548.82 and 162,640.70
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Solution
The fourth proportional to 291,703.76, 402,548.82 and 162,640.70 is: 224,442.85
Step by Step Solution
- Step 1: Write the proportion equation
291,703.76 : 402,548.82 = 162,640.70 : x - Step 2: Convert to fraction form
291,703.76/402,548.82 = 162,640.70/x - Step 3: Cross multiply
291,703.76x = 402,548.82 × 162,640.70 - Step 4: Simplify right side
291,703.76x = 65,470,821,868.97 - Step 5: Solve for x
x = 65,470,821,868.97/291,703.76 - Step 6: Final answer
x = 224,442.85
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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.