Finding the Fourth Proportional to 276,994.90, 415,371.67 and 147,135.28
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Solution
The fourth proportional to 276,994.90, 415,371.67 and 147,135.28 is: 220,638.81
Step by Step Solution
- Step 1: Write the proportion equation
276,994.90 : 415,371.67 = 147,135.28 : x - Step 2: Convert to fraction form
276,994.90/415,371.67 = 147,135.28/x - Step 3: Cross multiply
276,994.90x = 415,371.67 × 147,135.28 - Step 4: Simplify right side
276,994.90x = 61,115,825,563.25 - Step 5: Solve for x
x = 61,115,825,563.25/276,994.90 - Step 6: Final answer
x = 220,638.81
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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.