Finding the Fourth Proportional to 416,401.74, 574,633.74 and 225,415.08
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Solution
The fourth proportional to 416,401.74, 574,633.74 and 225,415.08 is: 311,072.45
Step by Step Solution
- Step 1: Write the proportion equation
416,401.74 : 574,633.74 = 225,415.08 : x - Step 2: Convert to fraction form
416,401.74/574,633.74 = 225,415.08/x - Step 3: Cross multiply
416,401.74x = 574,633.74 × 225,415.08 - Step 4: Simplify right side
416,401.74x = 129,531,110,472.80 - Step 5: Solve for x
x = 129,531,110,472.80/416,401.74 - Step 6: Final answer
x = 311,072.45
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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.