Finding the Fourth Proportional to 185,781.44, 256,378.84 and 100,896.68
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Solution
The fourth proportional to 185,781.44, 256,378.84 and 100,896.68 is: 139,237.66
Step by Step Solution
- Step 1: Write the proportion equation
185,781.44 : 256,378.84 = 100,896.68 : x - Step 2: Convert to fraction form
185,781.44/256,378.84 = 100,896.68/x - Step 3: Cross multiply
185,781.44x = 256,378.84 × 100,896.68 - Step 4: Simplify right side
185,781.44x = 25,867,773,778.25 - Step 5: Solve for x
x = 25,867,773,778.25/185,781.44 - Step 6: Final answer
x = 139,237.66
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.