Finding the Fourth Proportional to 257,745.49, 386,423.82 and 169,021.33
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Solution
The fourth proportional to 257,745.49, 386,423.82 and 169,021.33 is: 253,404.50
Step by Step Solution
- Step 1: Write the proportion equation
257,745.49 : 386,423.82 = 169,021.33 : x - Step 2: Convert to fraction form
257,745.49/386,423.82 = 169,021.33/x - Step 3: Cross multiply
257,745.49x = 386,423.82 × 169,021.33 - Step 4: Simplify right side
257,745.49x = 65,313,868,000.08 - Step 5: Solve for x
x = 65,313,868,000.08/257,745.49 - Step 6: Final answer
x = 253,404.50
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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.