Finding the Fourth Proportional to 352,138.60, 527,516.70 and 211,479.40
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Solution
The fourth proportional to 352,138.60, 527,516.70 and 211,479.40 is: 316,803.99
Step by Step Solution
- Step 1: Write the proportion equation
352,138.60 : 527,516.70 = 211,479.40 : x - Step 2: Convert to fraction form
352,138.60/527,516.70 = 211,479.40/x - Step 3: Cross multiply
352,138.60x = 527,516.70 × 211,479.40 - Step 4: Simplify right side
352,138.60x = 111,558,915,205.98 - Step 5: Solve for x
x = 111,558,915,205.98/352,138.60 - Step 6: Final answer
x = 316,803.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.