Finding the Fourth Proportional to 221,964.13, 306,310.50 and 121,362.13
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Solution
The fourth proportional to 221,964.13, 306,310.50 and 121,362.13 is: 167,479.74
Step by Step Solution
- Step 1: Write the proportion equation
221,964.13 : 306,310.50 = 121,362.13 : x - Step 2: Convert to fraction form
221,964.13/306,310.50 = 121,362.13/x - Step 3: Cross multiply
221,964.13x = 306,310.50 × 121,362.13 - Step 4: Simplify right side
221,964.13x = 37,174,494,721.37 - Step 5: Solve for x
x = 37,174,494,721.37/221,964.13 - Step 6: Final answer
x = 167,479.74
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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.