Finding the Fourth Proportional to 185,531.99, 256,034.79 and 100,649.66
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Solution
The fourth proportional to 185,531.99, 256,034.79 and 100,649.66 is: 138,896.88
Step by Step Solution
- Step 1: Write the proportion equation
185,531.99 : 256,034.79 = 100,649.66 : x - Step 2: Convert to fraction form
185,531.99/256,034.79 = 100,649.66/x - Step 3: Cross multiply
185,531.99x = 256,034.79 × 100,649.66 - Step 4: Simplify right side
185,531.99x = 25,769,813,281.50 - Step 5: Solve for x
x = 25,769,813,281.50/185,531.99 - Step 6: Final answer
x = 138,896.88
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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.