Finding the Fourth Proportional to 207,977.58, 311,681.93 and 113,083.65
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Solution
The fourth proportional to 207,977.58, 311,681.93 and 113,083.65 is: 169,470.81
Step by Step Solution
- Step 1: Write the proportion equation
207,977.58 : 311,681.93 = 113,083.65 : x - Step 2: Convert to fraction form
207,977.58/311,681.93 = 113,083.65/x - Step 3: Cross multiply
207,977.58x = 311,681.93 × 113,083.65 - Step 4: Simplify right side
207,977.58x = 35,246,129,718.03 - Step 5: Solve for x
x = 35,246,129,718.03/207,977.58 - Step 6: Final answer
x = 169,470.81
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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.