Finding the Fourth Proportional to 306,822.75, 423,414.95 and 170,868.60
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Solution
The fourth proportional to 306,822.75, 423,414.95 and 170,868.60 is: 235,798.42
Step by Step Solution
- Step 1: Write the proportion equation
306,822.75 : 423,414.95 = 170,868.60 : x - Step 2: Convert to fraction form
306,822.75/423,414.95 = 170,868.60/x - Step 3: Cross multiply
306,822.75x = 423,414.95 × 170,868.60 - Step 4: Simplify right side
306,822.75x = 72,348,318,871.23 - Step 5: Solve for x
x = 72,348,318,871.23/306,822.75 - Step 6: Final answer
x = 235,798.42
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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.