Finding the Fourth Proportional to 245,736.18, 368,692.97 and 85,835.80
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Solution
The fourth proportional to 245,736.18, 368,692.97 and 85,835.80 is: 128,784.68
Step by Step Solution
- Step 1: Write the proportion equation
245,736.18 : 368,692.97 = 85,835.80 : x - Step 2: Convert to fraction form
245,736.18/368,692.97 = 85,835.80/x - Step 3: Cross multiply
245,736.18x = 368,692.97 × 85,835.80 - Step 4: Simplify right side
245,736.18x = 31,647,056,066.01 - Step 5: Solve for x
x = 31,647,056,066.01/245,736.18 - Step 6: Final answer
x = 128,784.68
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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.