Finding the Fourth Proportional to 201,813.38, 278,502.53 and 116,979.65
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Solution
The fourth proportional to 201,813.38, 278,502.53 and 116,979.65 is: 161,431.95
Step by Step Solution
- Step 1: Write the proportion equation
201,813.38 : 278,502.53 = 116,979.65 : x - Step 2: Convert to fraction form
201,813.38/278,502.53 = 116,979.65/x - Step 3: Cross multiply
201,813.38x = 278,502.53 × 116,979.65 - Step 4: Simplify right side
201,813.38x = 32,579,126,506.10 - Step 5: Solve for x
x = 32,579,126,506.10/201,813.38 - Step 6: Final answer
x = 161,431.95
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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.