Finding the Fourth Proportional to 309,413.28, 464,120.28 and 84,775.62
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Solution
The fourth proportional to 309,413.28, 464,120.28 and 84,775.62 is: 127,163.53
Step by Step Solution
- Step 1: Write the proportion equation
309,413.28 : 464,120.28 = 84,775.62 : x - Step 2: Convert to fraction form
309,413.28/464,120.28 = 84,775.62/x - Step 3: Cross multiply
309,413.28x = 464,120.28 × 84,775.62 - Step 4: Simplify right side
309,413.28x = 39,346,084,491.57 - Step 5: Solve for x
x = 39,346,084,491.57/309,413.28 - Step 6: Final answer
x = 127,163.53
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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.