Finding the Fourth Proportional to 353,073.07, 529,443.12 and 128,274.98
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Solution
The fourth proportional to 353,073.07, 529,443.12 and 128,274.98 is: 192,351.99
Step by Step Solution
- Step 1: Write the proportion equation
353,073.07 : 529,443.12 = 128,274.98 : x - Step 2: Convert to fraction form
353,073.07/529,443.12 = 128,274.98/x - Step 3: Cross multiply
353,073.07x = 529,443.12 × 128,274.98 - Step 4: Simplify right side
353,073.07x = 67,914,305,629.14 - Step 5: Solve for x
x = 67,914,305,629.14/353,073.07 - Step 6: Final answer
x = 192,351.99
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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.