Finding the Fourth Proportional to 339,581.26, 509,371.35 and 90,263.26
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Solution
The fourth proportional to 339,581.26, 509,371.35 and 90,263.26 is: 135,394.75
Step by Step Solution
- Step 1: Write the proportion equation
339,581.26 : 509,371.35 = 90,263.26 : x - Step 2: Convert to fraction form
339,581.26/509,371.35 = 90,263.26/x - Step 3: Cross multiply
339,581.26x = 509,371.35 × 90,263.26 - Step 4: Simplify right side
339,581.26x = 45,977,518,601.60 - Step 5: Solve for x
x = 45,977,518,601.60/339,581.26 - Step 6: Final answer
x = 135,394.75
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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.