Finding the Fourth Proportional to 427,204.99, 640,851.36 and 161,189.38
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Solution
The fourth proportional to 427,204.99, 640,851.36 and 161,189.38 is: 241,800.62
Step by Step Solution
- Step 1: Write the proportion equation
427,204.99 : 640,851.36 = 161,189.38 : x - Step 2: Convert to fraction form
427,204.99/640,851.36 = 161,189.38/x - Step 3: Cross multiply
427,204.99x = 640,851.36 × 161,189.38 - Step 4: Simplify right side
427,204.99x = 103,298,433,390.56 - Step 5: Solve for x
x = 103,298,433,390.56/427,204.99 - Step 6: Final answer
x = 241,800.62
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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.