Finding the Fourth Proportional to 279,629.19, 385,756.36 and 189,016.79
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Solution
The fourth proportional to 279,629.19, 385,756.36 and 189,016.79 is: 260,753.99
Step by Step Solution
- Step 1: Write the proportion equation
279,629.19 : 385,756.36 = 189,016.79 : x - Step 2: Convert to fraction form
279,629.19/385,756.36 = 189,016.79/x - Step 3: Cross multiply
279,629.19x = 385,756.36 × 189,016.79 - Step 4: Simplify right side
279,629.19x = 72,914,426,487.96 - Step 5: Solve for x
x = 72,914,426,487.96/279,629.19 - Step 6: Final answer
x = 260,753.99
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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.