Finding the Fourth Proportional to 289,249.34, 399,164.09 and 176,072.09
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Solution
The fourth proportional to 289,249.34, 399,164.09 and 176,072.09 is: 242,979.48
Step by Step Solution
- Step 1: Write the proportion equation
289,249.34 : 399,164.09 = 176,072.09 : x - Step 2: Convert to fraction form
289,249.34/399,164.09 = 176,072.09/x - Step 3: Cross multiply
289,249.34x = 399,164.09 × 176,072.09 - Step 4: Simplify right side
289,249.34x = 70,281,652,703.07 - Step 5: Solve for x
x = 70,281,652,703.07/289,249.34 - Step 6: Final answer
x = 242,979.48
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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.