Finding the Fourth Proportional to 409,358.50, 614,059.62 and 128,897.62
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Solution
The fourth proportional to 409,358.50, 614,059.62 and 128,897.62 is: 193,353.32
Step by Step Solution
- Step 1: Write the proportion equation
409,358.50 : 614,059.62 = 128,897.62 : x - Step 2: Convert to fraction form
409,358.50/614,059.62 = 128,897.62/x - Step 3: Cross multiply
409,358.50x = 614,059.62 × 128,897.62 - Step 4: Simplify right side
409,358.50x = 79,150,823,556.10 - Step 5: Solve for x
x = 79,150,823,556.10/409,358.50 - Step 6: Final answer
x = 193,353.32
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1.5x scale
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.