Finding the Fourth Proportional to 323,911.12, 446,978.10 and 187,934.53
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Solution
The fourth proportional to 323,911.12, 446,978.10 and 187,934.53 is: 259,338.49
Step by Step Solution
- Step 1: Write the proportion equation
323,911.12 : 446,978.10 = 187,934.53 : x - Step 2: Convert to fraction form
323,911.12/446,978.10 = 187,934.53/x - Step 3: Cross multiply
323,911.12x = 446,978.10 × 187,934.53 - Step 4: Simplify right side
323,911.12x = 84,002,619,143.79 - Step 5: Solve for x
x = 84,002,619,143.79/323,911.12 - Step 6: Final answer
x = 259,338.49
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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.