Finding the Fourth Proportional to 421,462.94, 581,628.98 and 240,170.99
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Solution
The fourth proportional to 421,462.94, 581,628.98 and 240,170.99 is: 331,441.73
Step by Step Solution
- Step 1: Write the proportion equation
421,462.94 : 581,628.98 = 240,170.99 : x - Step 2: Convert to fraction form
421,462.94/581,628.98 = 240,170.99/x - Step 3: Cross multiply
421,462.94x = 581,628.98 × 240,170.99 - Step 4: Simplify right side
421,462.94x = 139,690,407,939.29 - Step 5: Solve for x
x = 139,690,407,939.29/421,462.94 - Step 6: Final answer
x = 331,441.73
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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.