Finding the Fourth Proportional to 201,868.90, 302,803.35 and 138,883.30
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Solution
The fourth proportional to 201,868.90, 302,803.35 and 138,883.30 is: 208,324.95
Step by Step Solution
- Step 1: Write the proportion equation
201,868.90 : 302,803.35 = 138,883.30 : x - Step 2: Convert to fraction form
201,868.90/302,803.35 = 138,883.30/x - Step 3: Cross multiply
201,868.90x = 302,803.35 × 138,883.30 - Step 4: Simplify right side
201,868.90x = 42,054,328,499.06 - Step 5: Solve for x
x = 42,054,328,499.06/201,868.90 - Step 6: Final answer
x = 208,324.95
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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.