Finding the Fourth Proportional to 221,618.88, 332,416.80 and 71,856.96
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Solution
The fourth proportional to 221,618.88, 332,416.80 and 71,856.96 is: 107,781.70
Step by Step Solution
- Step 1: Write the proportion equation
221,618.88 : 332,416.80 = 71,856.96 : x - Step 2: Convert to fraction form
221,618.88/332,416.80 = 71,856.96/x - Step 3: Cross multiply
221,618.88x = 332,416.80 × 71,856.96 - Step 4: Simplify right side
221,618.88x = 23,886,460,700.93 - Step 5: Solve for x
x = 23,886,460,700.93/221,618.88 - Step 6: Final answer
x = 107,781.70
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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.