Finding the Fourth Proportional to 305,863.75, 458,795.63 and 84,247.75
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Solution
The fourth proportional to 305,863.75, 458,795.63 and 84,247.75 is: 126,371.63
Step by Step Solution
- Step 1: Write the proportion equation
305,863.75 : 458,795.63 = 84,247.75 : x - Step 2: Convert to fraction form
305,863.75/458,795.63 = 84,247.75/x - Step 3: Cross multiply
305,863.75x = 458,795.63 × 84,247.75 - Step 4: Simplify right side
305,863.75x = 38,652,499,537.33 - Step 5: Solve for x
x = 38,652,499,537.33/305,863.75 - Step 6: Final answer
x = 126,371.63
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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.