Finding the Fourth Proportional to 201,617.30, 302,425.95 and 138,631.70
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Solution
The fourth proportional to 201,617.30, 302,425.95 and 138,631.70 is: 207,947.55
Step by Step Solution
- Step 1: Write the proportion equation
201,617.30 : 302,425.95 = 138,631.70 : x - Step 2: Convert to fraction form
201,617.30/302,425.95 = 138,631.70/x - Step 3: Cross multiply
201,617.30x = 302,425.95 × 138,631.70 - Step 4: Simplify right side
201,617.30x = 41,925,823,572.62 - Step 5: Solve for x
x = 41,925,823,572.62/201,617.30 - Step 6: Final answer
x = 207,947.55
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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.