Finding the Fourth Proportional to 349,031.53, 481,663.97 and 198,128.53
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Solution
The fourth proportional to 349,031.53, 481,663.97 and 198,128.53 is: 273,417.63
Step by Step Solution
- Step 1: Write the proportion equation
349,031.53 : 481,663.97 = 198,128.53 : x - Step 2: Convert to fraction form
349,031.53/481,663.97 = 198,128.53/x - Step 3: Cross multiply
349,031.53x = 481,663.97 × 198,128.53 - Step 4: Simplify right side
349,031.53x = 95,431,374,684.48 - Step 5: Solve for x
x = 95,431,374,684.48/349,031.53 - Step 6: Final answer
x = 273,417.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.