Finding the Fourth Proportional to 403,811.20, 605,668.20 and 167,129.20
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Solution
The fourth proportional to 403,811.20, 605,668.20 and 167,129.20 is: 250,673.69
Step by Step Solution
- Step 1: Write the proportion equation
403,811.20 : 605,668.20 = 167,129.20 : x - Step 2: Convert to fraction form
403,811.20/605,668.20 = 167,129.20/x - Step 3: Cross multiply
403,811.20x = 605,668.20 × 167,129.20 - Step 4: Simplify right side
403,811.20x = 101,224,841,731.44 - Step 5: Solve for x
x = 101,224,841,731.44/403,811.20 - Step 6: Final answer
x = 250,673.69
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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.