Finding the Fourth Proportional to 431,037.70, 646,556.55 and 168,381.70
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Solution
The fourth proportional to 431,037.70, 646,556.55 and 168,381.70 is: 252,572.55
Step by Step Solution
- Step 1: Write the proportion equation
431,037.70 : 646,556.55 = 168,381.70 : x - Step 2: Convert to fraction form
431,037.70/646,556.55 = 168,381.70/x - Step 3: Cross multiply
431,037.70x = 646,556.55 × 168,381.70 - Step 4: Simplify right side
431,037.70x = 108,868,291,035.14 - Step 5: Solve for x
x = 108,868,291,035.14/431,037.70 - Step 6: Final answer
x = 252,572.55
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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.