Finding the Fourth Proportional to 307,911.08, 461,931.42 and 115,786.64
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Solution
The fourth proportional to 307,911.08, 461,931.42 and 115,786.64 is: 173,704.33
Step by Step Solution
- Step 1: Write the proportion equation
307,911.08 : 461,931.42 = 115,786.64 : x - Step 2: Convert to fraction form
307,911.08/461,931.42 = 115,786.64/x - Step 3: Cross multiply
307,911.08x = 461,931.42 × 115,786.64 - Step 4: Simplify right side
307,911.08x = 53,485,487,032.23 - Step 5: Solve for x
x = 53,485,487,032.23/307,911.08 - Step 6: Final answer
x = 173,704.33
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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.