Finding the Fourth Proportional to 311,386.75, 429,624.81 and 175,373.12
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Solution
The fourth proportional to 311,386.75, 429,624.81 and 175,373.12 is: 241,964.83
Step by Step Solution
- Step 1: Write the proportion equation
311,386.75 : 429,624.81 = 175,373.12 : x - Step 2: Convert to fraction form
311,386.75/429,624.81 = 175,373.12/x - Step 3: Cross multiply
311,386.75x = 429,624.81 × 175,373.12 - Step 4: Simplify right side
311,386.75x = 75,344,642,016.53 - Step 5: Solve for x
x = 75,344,642,016.53/311,386.75 - Step 6: Final answer
x = 241,964.83
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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.