Finding the Fourth Proportional to 353,636.28, 488,059.56 and 198,612.99
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Solution
The fourth proportional to 353,636.28, 488,059.56 and 198,612.99 is: 274,109.23
Step by Step Solution
- Step 1: Write the proportion equation
353,636.28 : 488,059.56 = 198,612.99 : x - Step 2: Convert to fraction form
353,636.28/488,059.56 = 198,612.99/x - Step 3: Cross multiply
353,636.28x = 488,059.56 × 198,612.99 - Step 4: Simplify right side
353,636.28x = 96,934,968,509.68 - Step 5: Solve for x
x = 96,934,968,509.68/353,636.28 - Step 6: Final answer
x = 274,109.23
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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.