Finding the Fourth Proportional to 339,351.40, 509,027.10 and 305,525.80
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Solution
The fourth proportional to 339,351.40, 509,027.10 and 305,525.80 is: 458,288.70
Step by Step Solution
- Step 1: Write the proportion equation
339,351.40 : 509,027.10 = 305,525.80 : x - Step 2: Convert to fraction form
339,351.40/509,027.10 = 305,525.80/x - Step 3: Cross multiply
339,351.40x = 509,027.10 × 305,525.80 - Step 4: Simplify right side
339,351.40x = 155,520,911,949.18 - Step 5: Solve for x
x = 155,520,911,949.18/339,351.40 - Step 6: Final answer
x = 458,288.70
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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.