Finding the Fourth Proportional to 186,395.30, 279,316.46 and 136,905.38
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Solution
The fourth proportional to 186,395.30, 279,316.46 and 136,905.38 is: 205,154.99
Step by Step Solution
- Step 1: Write the proportion equation
186,395.30 : 279,316.46 = 136,905.38 : x - Step 2: Convert to fraction form
186,395.30/279,316.46 = 136,905.38/x - Step 3: Cross multiply
186,395.30x = 279,316.46 × 136,905.38 - Step 4: Simplify right side
186,395.30x = 38,239,926,096.55 - Step 5: Solve for x
x = 38,239,926,096.55/186,395.30 - Step 6: Final answer
x = 205,154.99
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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.