Finding the Fourth Proportional to 216,029.10, 324,043.65 and 122,717.10
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Solution
The fourth proportional to 216,029.10, 324,043.65 and 122,717.10 is: 184,075.65
Step by Step Solution
- Step 1: Write the proportion equation
216,029.10 : 324,043.65 = 122,717.10 : x - Step 2: Convert to fraction form
216,029.10/324,043.65 = 122,717.10/x - Step 3: Cross multiply
216,029.10x = 324,043.65 × 122,717.10 - Step 4: Simplify right side
216,029.10x = 39,765,697,001.42 - Step 5: Solve for x
x = 39,765,697,001.42/216,029.10 - Step 6: Final answer
x = 184,075.65
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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.