Finding the Fourth Proportional to 470,273.25, 649,175.26 and 317,518.14
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Solution
The fourth proportional to 470,273.25, 649,175.26 and 317,518.14 is: 438,308.84
Step by Step Solution
- Step 1: Write the proportion equation
470,273.25 : 649,175.26 = 317,518.14 : x - Step 2: Convert to fraction form
470,273.25/649,175.26 = 317,518.14/x - Step 3: Cross multiply
470,273.25x = 649,175.26 × 317,518.14 - Step 4: Simplify right side
470,273.25x = 206,124,921,089.22 - Step 5: Solve for x
x = 206,124,921,089.22/470,273.25 - Step 6: Final answer
x = 438,308.84
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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.