Finding the Fourth Proportional to 145,344.99, 217,768.35 and 115,451.43
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Solution
The fourth proportional to 145,344.99, 217,768.35 and 115,451.43 is: 172,979.25
Step by Step Solution
- Step 1: Write the proportion equation
145,344.99 : 217,768.35 = 115,451.43 : x - Step 2: Convert to fraction form
145,344.99/217,768.35 = 115,451.43/x - Step 3: Cross multiply
145,344.99x = 217,768.35 × 115,451.43 - Step 4: Simplify right side
145,344.99x = 25,141,667,416.24 - Step 5: Solve for x
x = 25,141,667,416.24/145,344.99 - Step 6: Final answer
x = 172,979.25
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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.