Finding the Fourth Proportional to 339,571.26, 509,356.35 and 90,253.26
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Solution
The fourth proportional to 339,571.26, 509,356.35 and 90,253.26 is: 135,379.75
Step by Step Solution
- Step 1: Write the proportion equation
339,571.26 : 509,356.35 = 90,253.26 : x - Step 2: Convert to fraction form
339,571.26/509,356.35 = 90,253.26/x - Step 3: Cross multiply
339,571.26x = 509,356.35 × 90,253.26 - Step 4: Simplify right side
339,571.26x = 45,971,071,089.20 - Step 5: Solve for x
x = 45,971,071,089.20/339,571.26 - Step 6: Final answer
x = 135,379.75
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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.