Finding the Fourth Proportional to 201,615.70, 302,423.55 and 103,311.70
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Solution
The fourth proportional to 201,615.70, 302,423.55 and 103,311.70 is: 154,967.55
Step by Step Solution
- Step 1: Write the proportion equation
201,615.70 : 302,423.55 = 103,311.70 : x - Step 2: Convert to fraction form
201,615.70/302,423.55 = 103,311.70/x - Step 3: Cross multiply
201,615.70x = 302,423.55 × 103,311.70 - Step 4: Simplify right side
201,615.70x = 31,243,891,070.54 - Step 5: Solve for x
x = 31,243,891,070.54/201,615.70 - Step 6: Final answer
x = 154,967.55
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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.