Finding the Fourth Proportional to 315,585.08, 435,505.11 and 172,345.08
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Solution
The fourth proportional to 315,585.08, 435,505.11 and 172,345.08 is: 237,834.96
Step by Step Solution
- Step 1: Write the proportion equation
315,585.08 : 435,505.11 = 172,345.08 : x - Step 2: Convert to fraction form
315,585.08/435,505.11 = 172,345.08/x - Step 3: Cross multiply
315,585.08x = 435,505.11 × 172,345.08 - Step 4: Simplify right side
315,585.08x = 75,057,164,010.21 - Step 5: Solve for x
x = 75,057,164,010.21/315,585.08 - Step 6: Final answer
x = 237,834.96
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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.