Finding the Fourth Proportional to 378,122.20, 566,492.10 and 307,619.80
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Solution
The fourth proportional to 378,122.20, 566,492.10 and 307,619.80 is: 460,867.38
Step by Step Solution
- Step 1: Write the proportion equation
378,122.20 : 566,492.10 = 307,619.80 : x - Step 2: Convert to fraction form
378,122.20/566,492.10 = 307,619.80/x - Step 3: Cross multiply
378,122.20x = 566,492.10 × 307,619.80 - Step 4: Simplify right side
378,122.20x = 174,264,186,503.58 - Step 5: Solve for x
x = 174,264,186,503.58/378,122.20 - Step 6: Final answer
x = 460,867.38
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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.