Finding the Fourth Proportional to 307,021.13, 423,672.75 and 169,195.58
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Solution
The fourth proportional to 307,021.13, 423,672.75 and 169,195.58 is: 233,480.85
Step by Step Solution
- Step 1: Write the proportion equation
307,021.13 : 423,672.75 = 169,195.58 : x - Step 2: Convert to fraction form
307,021.13/423,672.75 = 169,195.58/x - Step 3: Cross multiply
307,021.13x = 423,672.75 × 169,195.58 - Step 4: Simplify right side
307,021.13x = 71,683,554,548.08 - Step 5: Solve for x
x = 71,683,554,548.08/307,021.13 - Step 6: Final answer
x = 233,480.85
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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.