Finding the Fourth Proportional to 204,990.10, 307,485.15 and 125,847.70
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Solution
The fourth proportional to 204,990.10, 307,485.15 and 125,847.70 is: 188,771.55
Step by Step Solution
- Step 1: Write the proportion equation
204,990.10 : 307,485.15 = 125,847.70 : x - Step 2: Convert to fraction form
204,990.10/307,485.15 = 125,847.70/x - Step 3: Cross multiply
204,990.10x = 307,485.15 × 125,847.70 - Step 4: Simplify right side
204,990.10x = 38,696,298,911.66 - Step 5: Solve for x
x = 38,696,298,911.66/204,990.10 - Step 6: Final answer
x = 188,771.55
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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.