Finding the Fourth Proportional to 272,844.80, 409,267.20 and 253,161.80
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Solution
The fourth proportional to 272,844.80, 409,267.20 and 253,161.80 is: 379,742.70
Step by Step Solution
- Step 1: Write the proportion equation
272,844.80 : 409,267.20 = 253,161.80 : x - Step 2: Convert to fraction form
272,844.80/409,267.20 = 253,161.80/x - Step 3: Cross multiply
272,844.80x = 409,267.20 × 253,161.80 - Step 4: Simplify right side
272,844.80x = 103,610,821,032.96 - Step 5: Solve for x
x = 103,610,821,032.96/272,844.80 - Step 6: Final answer
x = 379,742.70
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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.