Finding the Fourth Proportional to 281,125.95, 421,688.40 and 91,586.09
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Solution
The fourth proportional to 281,125.95, 421,688.40 and 91,586.09 is: 137,378.96
Step by Step Solution
- Step 1: Write the proportion equation
281,125.95 : 421,688.40 = 91,586.09 : x - Step 2: Convert to fraction form
281,125.95/421,688.40 = 91,586.09/x - Step 3: Cross multiply
281,125.95x = 421,688.40 × 91,586.09 - Step 4: Simplify right side
281,125.95x = 38,620,791,754.36 - Step 5: Solve for x
x = 38,620,791,754.36/281,125.95 - Step 6: Final answer
x = 137,378.96
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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.