Finding the Fourth Proportional to 402,604.05, 555,595.38 and 221,327.66
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Solution
The fourth proportional to 402,604.05, 555,595.38 and 221,327.66 is: 305,433.15
Step by Step Solution
- Step 1: Write the proportion equation
402,604.05 : 555,595.38 = 221,327.66 : x - Step 2: Convert to fraction form
402,604.05/555,595.38 = 221,327.66/x - Step 3: Cross multiply
402,604.05x = 555,595.38 × 221,327.66 - Step 4: Simplify right side
402,604.05x = 122,968,622,584.23 - Step 5: Solve for x
x = 122,968,622,584.23/402,604.05 - Step 6: Final answer
x = 305,433.15
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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.