Finding the Fourth Proportional to 205,054.10, 307,581.15 and 125,911.70
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Solution
The fourth proportional to 205,054.10, 307,581.15 and 125,911.70 is: 188,867.55
Step by Step Solution
- Step 1: Write the proportion equation
205,054.10 : 307,581.15 = 125,911.70 : x - Step 2: Convert to fraction form
205,054.10/307,581.15 = 125,911.70/x - Step 3: Cross multiply
205,054.10x = 307,581.15 × 125,911.70 - Step 4: Simplify right side
205,054.10x = 38,728,065,484.46 - Step 5: Solve for x
x = 38,728,065,484.46/205,054.10 - Step 6: Final answer
x = 188,867.55
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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.