Finding the Fourth Proportional to 318,202.01, 439,115.20 and 236,893.80
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Solution
The fourth proportional to 318,202.01, 439,115.20 and 236,893.80 is: 326,910.78
Step by Step Solution
- Step 1: Write the proportion equation
318,202.01 : 439,115.20 = 236,893.80 : x - Step 2: Convert to fraction form
318,202.01/439,115.20 = 236,893.80/x - Step 3: Cross multiply
318,202.01x = 439,115.20 × 236,893.80 - Step 4: Simplify right side
318,202.01x = 104,023,668,365.76 - Step 5: Solve for x
x = 104,023,668,365.76/318,202.01 - Step 6: Final answer
x = 326,910.78
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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.