Finding the Fourth Proportional to 221,311.36, 305,389.20 and 125,799.40
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Solution
The fourth proportional to 221,311.36, 305,389.20 and 125,799.40 is: 173,591.53
Step by Step Solution
- Step 1: Write the proportion equation
221,311.36 : 305,389.20 = 125,799.40 : x - Step 2: Convert to fraction form
221,311.36/305,389.20 = 125,799.40/x - Step 3: Cross multiply
221,311.36x = 305,389.20 × 125,799.40 - Step 4: Simplify right side
221,311.36x = 38,417,778,126.48 - Step 5: Solve for x
x = 38,417,778,126.48/221,311.36 - Step 6: Final answer
x = 173,591.53
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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.