Finding the Fourth Proportional to 349,821.64, 482,709.54 and 198,921.88
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Solution
The fourth proportional to 349,821.64, 482,709.54 and 198,921.88 is: 274,486.99
Step by Step Solution
- Step 1: Write the proportion equation
349,821.64 : 482,709.54 = 198,921.88 : x - Step 2: Convert to fraction form
349,821.64/482,709.54 = 198,921.88/x - Step 3: Cross multiply
349,821.64x = 482,709.54 × 198,921.88 - Step 4: Simplify right side
349,821.64x = 96,021,489,190.74 - Step 5: Solve for x
x = 96,021,489,190.74/349,821.64 - Step 6: Final answer
x = 274,486.99
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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.