Finding the Fourth Proportional to 354,578.36, 489,280.40 and 199,526.94
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Solution
The fourth proportional to 354,578.36, 489,280.40 and 199,526.94 is: 275,325.95
Step by Step Solution
- Step 1: Write the proportion equation
354,578.36 : 489,280.40 = 199,526.94 : x - Step 2: Convert to fraction form
354,578.36/489,280.40 = 199,526.94/x - Step 3: Cross multiply
354,578.36x = 489,280.40 × 199,526.94 - Step 4: Simplify right side
354,578.36x = 97,624,622,237.18 - Step 5: Solve for x
x = 97,624,622,237.18/354,578.36 - Step 6: Final answer
x = 275,325.95
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1.5x scale
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.