Finding the Fourth Proportional to 416,298.19, 574,491.49 and 225,311.59
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Solution
The fourth proportional to 416,298.19, 574,491.49 and 225,311.59 is: 310,929.99
Step by Step Solution
- Step 1: Write the proportion equation
416,298.19 : 574,491.49 = 225,311.59 : x - Step 2: Convert to fraction form
416,298.19/574,491.49 = 225,311.59/x - Step 3: Cross multiply
416,298.19x = 574,491.49 × 225,311.59 - Step 4: Simplify right side
416,298.19x = 129,439,591,053.37 - Step 5: Solve for x
x = 129,439,591,053.37/416,298.19 - Step 6: Final answer
x = 310,929.99
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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.