Finding the Fourth Proportional to 235,415.10, 353,122.65 and 205,890.60
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Solution
The fourth proportional to 235,415.10, 353,122.65 and 205,890.60 is: 308,835.90
Step by Step Solution
- Step 1: Write the proportion equation
235,415.10 : 353,122.65 = 205,890.60 : x - Step 2: Convert to fraction form
235,415.10/353,122.65 = 205,890.60/x - Step 3: Cross multiply
235,415.10x = 353,122.65 × 205,890.60 - Step 4: Simplify right side
235,415.10x = 72,704,634,282.09 - Step 5: Solve for x
x = 72,704,634,282.09/235,415.10 - Step 6: Final answer
x = 308,835.90
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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.