Finding the Fourth Proportional to 221,216.60, 305,278.98 and 125,720.84
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Solution
The fourth proportional to 221,216.60, 305,278.98 and 125,720.84 is: 173,494.80
Step by Step Solution
- Step 1: Write the proportion equation
221,216.60 : 305,278.98 = 125,720.84 : x - Step 2: Convert to fraction form
221,216.60/305,278.98 = 125,720.84/x - Step 3: Cross multiply
221,216.60x = 305,278.98 × 125,720.84 - Step 4: Simplify right side
221,216.60x = 38,379,930,091.69 - Step 5: Solve for x
x = 38,379,930,091.69/221,216.60 - Step 6: Final answer
x = 173,494.80
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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.