Finding the Fourth Proportional to 286,197.18, 394,970.50 and 165,343.56
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Solution
The fourth proportional to 286,197.18, 394,970.50 and 165,343.56 is: 228,184.74
Step by Step Solution
- Step 1: Write the proportion equation
286,197.18 : 394,970.50 = 165,343.56 : x - Step 2: Convert to fraction form
286,197.18/394,970.50 = 165,343.56/x - Step 3: Cross multiply
286,197.18x = 394,970.50 × 165,343.56 - Step 4: Simplify right side
286,197.18x = 65,305,828,564.98 - Step 5: Solve for x
x = 65,305,828,564.98/286,197.18 - Step 6: Final answer
x = 228,184.74
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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.