Finding the Fourth Proportional to 385,536.51, 531,977.12 and 242,195.06
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Solution
The fourth proportional to 385,536.51, 531,977.12 and 242,195.06 is: 334,189.44
Step by Step Solution
- Step 1: Write the proportion equation
385,536.51 : 531,977.12 = 242,195.06 : x - Step 2: Convert to fraction form
385,536.51/531,977.12 = 242,195.06/x - Step 3: Cross multiply
385,536.51x = 531,977.12 × 242,195.06 - Step 4: Simplify right side
385,536.51x = 128,842,231,524.23 - Step 5: Solve for x
x = 128,842,231,524.23/385,536.51 - Step 6: Final answer
x = 334,189.44
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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.