Finding the Fourth Proportional to 201,616.90, 302,425.35 and 138,631.30
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Solution
The fourth proportional to 201,616.90, 302,425.35 and 138,631.30 is: 207,946.95
Step by Step Solution
- Step 1: Write the proportion equation
201,616.90 : 302,425.35 = 138,631.30 : x - Step 2: Convert to fraction form
201,616.90/302,425.35 = 138,631.30/x - Step 3: Cross multiply
201,616.90x = 302,425.35 × 138,631.30 - Step 4: Simplify right side
201,616.90x = 41,925,619,423.46 - Step 5: Solve for x
x = 41,925,619,423.46/201,616.90 - Step 6: Final answer
x = 207,946.95
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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.