Finding the Fourth Proportional to 401,723.10, 602,160.99 and 131,780.75
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Solution
The fourth proportional to 401,723.10, 602,160.99 and 131,780.75 is: 197,532.15
Step by Step Solution
- Step 1: Write the proportion equation
401,723.10 : 602,160.99 = 131,780.75 : x - Step 2: Convert to fraction form
401,723.10/602,160.99 = 131,780.75/x - Step 3: Cross multiply
401,723.10x = 602,160.99 × 131,780.75 - Step 4: Simplify right side
401,723.10x = 79,353,226,882.94 - Step 5: Solve for x
x = 79,353,226,882.94/401,723.10 - Step 6: Final answer
x = 197,532.15
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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.