Finding the Fourth Proportional to 205,008.10, 307,512.15 and 125,865.70
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Solution
The fourth proportional to 205,008.10, 307,512.15 and 125,865.70 is: 188,798.55
Step by Step Solution
- Step 1: Write the proportion equation
205,008.10 : 307,512.15 = 125,865.70 : x - Step 2: Convert to fraction form
205,008.10/307,512.15 = 125,865.70/x - Step 3: Cross multiply
205,008.10x = 307,512.15 × 125,865.70 - Step 4: Simplify right side
205,008.10x = 38,705,232,018.26 - Step 5: Solve for x
x = 38,705,232,018.26/205,008.10 - Step 6: Final answer
x = 188,798.55
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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.