Finding the Fourth Proportional to 307,654.96, 461,688.36 and 107,976.28
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Solution
The fourth proportional to 307,654.96, 461,688.36 and 107,976.28 is: 162,036.69
Step by Step Solution
- Step 1: Write the proportion equation
307,654.96 : 461,688.36 = 107,976.28 : x - Step 2: Convert to fraction form
307,654.96/461,688.36 = 107,976.28/x - Step 3: Cross multiply
307,654.96x = 461,688.36 × 107,976.28 - Step 4: Simplify right side
307,654.96x = 49,851,391,632.10 - Step 5: Solve for x
x = 49,851,391,632.10/307,654.96 - Step 6: Final answer
x = 162,036.69
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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.