Finding the Fourth Proportional to 286,363.98, 395,134.84 and 165,516.54
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Solution
The fourth proportional to 286,363.98, 395,134.84 and 165,516.54 is: 228,385.40
Step by Step Solution
- Step 1: Write the proportion equation
286,363.98 : 395,134.84 = 165,516.54 : x - Step 2: Convert to fraction form
286,363.98/395,134.84 = 165,516.54/x - Step 3: Cross multiply
286,363.98x = 395,134.84 × 165,516.54 - Step 4: Simplify right side
286,363.98x = 65,401,351,550.25 - Step 5: Solve for x
x = 65,401,351,550.25/286,363.98 - Step 6: Final answer
x = 228,385.40
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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.