Finding the Fourth Proportional to 411,413.70, 618,157.35 and 261,725.70
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Solution
The fourth proportional to 411,413.70, 618,157.35 and 261,725.70 is: 393,248.12
Step by Step Solution
- Step 1: Write the proportion equation
411,413.70 : 618,157.35 = 261,725.70 : x - Step 2: Convert to fraction form
411,413.70/618,157.35 = 261,725.70/x - Step 3: Cross multiply
411,413.70x = 618,157.35 × 261,725.70 - Step 4: Simplify right side
411,413.70x = 161,787,665,138.90 - Step 5: Solve for x
x = 161,787,665,138.90/411,413.70 - Step 6: Final answer
x = 393,248.12
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1.5x scale
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.