Finding the Fourth Proportional to 353,880.14, 531,048.56 and 129,221.75
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Solution
The fourth proportional to 353,880.14, 531,048.56 and 129,221.75 is: 193,916.01
Step by Step Solution
- Step 1: Write the proportion equation
353,880.14 : 531,048.56 = 129,221.75 : x - Step 2: Convert to fraction form
353,880.14/531,048.56 = 129,221.75/x - Step 3: Cross multiply
353,880.14x = 531,048.56 × 129,221.75 - Step 4: Simplify right side
353,880.14x = 68,623,024,939.69 - Step 5: Solve for x
x = 68,623,024,939.69/353,880.14 - Step 6: Final answer
x = 193,916.01
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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.