Finding the Fourth Proportional to 307,668.69, 424,604.09 and 171,729.09
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Solution
The fourth proportional to 307,668.69, 424,604.09 and 171,729.09 is: 236,998.03
Step by Step Solution
- Step 1: Write the proportion equation
307,668.69 : 424,604.09 = 171,729.09 : x - Step 2: Convert to fraction form
307,668.69/424,604.09 = 171,729.09/x - Step 3: Cross multiply
307,668.69x = 424,604.09 × 171,729.09 - Step 4: Simplify right side
307,668.69x = 72,916,873,985.98 - Step 5: Solve for x
x = 72,916,873,985.98/307,668.69 - Step 6: Final answer
x = 236,998.03
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1.5x scale
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.