Finding the Fourth Proportional to 221,846.40, 306,148.80 and 121,246.08
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Solution
The fourth proportional to 221,846.40, 306,148.80 and 121,246.08 is: 167,320.01
Step by Step Solution
- Step 1: Write the proportion equation
221,846.40 : 306,148.80 = 121,246.08 : x - Step 2: Convert to fraction form
221,846.40/306,148.80 = 121,246.08/x - Step 3: Cross multiply
221,846.40x = 306,148.80 × 121,246.08 - Step 4: Simplify right side
221,846.40x = 37,119,341,896.70 - Step 5: Solve for x
x = 37,119,341,896.70/221,846.40 - Step 6: Final answer
x = 167,320.01
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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.