Finding the Fourth Proportional to 212,021.74, 292,468.35 and 132,395.50
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Solution
The fourth proportional to 212,021.74, 292,468.35 and 132,395.50 is: 182,629.83
Step by Step Solution
- Step 1: Write the proportion equation
212,021.74 : 292,468.35 = 132,395.50 : x - Step 2: Convert to fraction form
212,021.74/292,468.35 = 132,395.50/x - Step 3: Cross multiply
212,021.74x = 292,468.35 × 132,395.50 - Step 4: Simplify right side
212,021.74x = 38,721,493,432.43 - Step 5: Solve for x
x = 38,721,493,432.43/212,021.74 - Step 6: Final answer
x = 182,629.83
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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.