Finding the Fourth Proportional to 278,752.36, 418,193.34 and 91,765.48
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Solution
The fourth proportional to 278,752.36, 418,193.34 and 91,765.48 is: 137,669.55
Step by Step Solution
- Step 1: Write the proportion equation
278,752.36 : 418,193.34 = 91,765.48 : x - Step 2: Convert to fraction form
278,752.36/418,193.34 = 91,765.48/x - Step 3: Cross multiply
278,752.36x = 418,193.34 × 91,765.48 - Step 4: Simplify right side
278,752.36x = 38,375,712,577.90 - Step 5: Solve for x
x = 38,375,712,577.90/278,752.36 - Step 6: Final answer
x = 137,669.55
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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.