Finding the Fourth Proportional to 352,049.10, 528,073.65 and 115,415.70
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Solution
The fourth proportional to 352,049.10, 528,073.65 and 115,415.70 is: 173,123.55
Step by Step Solution
- Step 1: Write the proportion equation
352,049.10 : 528,073.65 = 115,415.70 : x - Step 2: Convert to fraction form
352,049.10/528,073.65 = 115,415.70/x - Step 3: Cross multiply
352,049.10x = 528,073.65 × 115,415.70 - Step 4: Simplify right side
352,049.10x = 60,947,989,966.31 - Step 5: Solve for x
x = 60,947,989,966.31/352,049.10 - Step 6: Final answer
x = 173,123.55
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1.5x scale
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.