Finding the Fourth Proportional to 257,342.94, 385,489.26 and 132,421.50
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Solution
The fourth proportional to 257,342.94, 385,489.26 and 132,421.50 is: 198,362.02
Step by Step Solution
- Step 1: Write the proportion equation
257,342.94 : 385,489.26 = 132,421.50 : x - Step 2: Convert to fraction form
257,342.94/385,489.26 = 132,421.50/x - Step 3: Cross multiply
257,342.94x = 385,489.26 × 132,421.50 - Step 4: Simplify right side
257,342.94x = 51,047,066,043.09 - Step 5: Solve for x
x = 51,047,066,043.09/257,342.94 - Step 6: Final answer
x = 198,362.02
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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.