Finding the Fourth Proportional to 351,735.10, 485,365.71 and 198,787.12
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Solution
The fourth proportional to 351,735.10, 485,365.71 and 198,787.12 is: 274,309.99
Step by Step Solution
- Step 1: Write the proportion equation
351,735.10 : 485,365.71 = 198,787.12 : x - Step 2: Convert to fraction form
351,735.10/485,365.71 = 198,787.12/x - Step 3: Cross multiply
351,735.10x = 485,365.71 × 198,787.12 - Step 4: Simplify right side
351,735.10x = 96,484,451,637.66 - Step 5: Solve for x
x = 96,484,451,637.66/351,735.10 - Step 6: Final answer
x = 274,309.99
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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.