Finding the Fourth Proportional to 257,645.10, 386,280.79 and 173,195.79
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Solution
The fourth proportional to 257,645.10, 386,280.79 and 173,195.79 is: 259,668.07
Step by Step Solution
- Step 1: Write the proportion equation
257,645.10 : 386,280.79 = 173,195.79 : x - Step 2: Convert to fraction form
257,645.10/386,280.79 = 173,195.79/x - Step 3: Cross multiply
257,645.10x = 386,280.79 × 173,195.79 - Step 4: Simplify right side
257,645.10x = 66,902,206,585.87 - Step 5: Solve for x
x = 66,902,206,585.87/257,645.10 - Step 6: Final answer
x = 259,668.07
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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.