Finding the Fourth Proportional to 291,609.09, 437,413.65 and 69,993.09
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Solution
The fourth proportional to 291,609.09, 437,413.65 and 69,993.09 is: 104,989.64
Step by Step Solution
- Step 1: Write the proportion equation
291,609.09 : 437,413.65 = 69,993.09 : x - Step 2: Convert to fraction form
291,609.09/437,413.65 = 69,993.09/x - Step 3: Cross multiply
291,609.09x = 437,413.65 × 69,993.09 - Step 4: Simplify right side
291,609.09x = 30,615,934,349.51 - Step 5: Solve for x
x = 30,615,934,349.51/291,609.09 - Step 6: Final answer
x = 104,989.64
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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.