Finding the Fourth Proportional to 399,073.25, 550,672.63 and 227,013.08
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Solution
The fourth proportional to 399,073.25, 550,672.63 and 227,013.08 is: 313,250.48
Step by Step Solution
- Step 1: Write the proportion equation
399,073.25 : 550,672.63 = 227,013.08 : x - Step 2: Convert to fraction form
399,073.25/550,672.63 = 227,013.08/x - Step 3: Cross multiply
399,073.25x = 550,672.63 × 227,013.08 - Step 4: Simplify right side
399,073.25x = 125,009,886,487.11 - Step 5: Solve for x
x = 125,009,886,487.11/399,073.25 - Step 6: Final answer
x = 313,250.48
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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.