Finding the Fourth Proportional to 221,489.12, 332,277.44 and 81,248.96
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Solution
The fourth proportional to 221,489.12, 332,277.44 and 81,248.96 is: 121,889.49
Step by Step Solution
- Step 1: Write the proportion equation
221,489.12 : 332,277.44 = 81,248.96 : x - Step 2: Convert to fraction form
221,489.12/332,277.44 = 81,248.96/x - Step 3: Cross multiply
221,489.12x = 332,277.44 × 81,248.96 - Step 4: Simplify right side
221,489.12x = 26,997,196,431.46 - Step 5: Solve for x
x = 26,997,196,431.46/221,489.12 - Step 6: Final answer
x = 121,889.49
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.