Finding the Fourth Proportional to 205,272.10, 307,908.15 and 134,769.70
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Solution
The fourth proportional to 205,272.10, 307,908.15 and 134,769.70 is: 202,154.55
Step by Step Solution
- Step 1: Write the proportion equation
205,272.10 : 307,908.15 = 134,769.70 : x - Step 2: Convert to fraction form
205,272.10/307,908.15 = 134,769.70/x - Step 3: Cross multiply
205,272.10x = 307,908.15 × 134,769.70 - Step 4: Simplify right side
205,272.10x = 41,496,689,003.06 - Step 5: Solve for x
x = 41,496,689,003.06/205,272.10 - Step 6: Final answer
x = 202,154.55
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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.