Finding the Fourth Proportional to 349,846.60, 524,769.90 and 128,201.80
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Solution
The fourth proportional to 349,846.60, 524,769.90 and 128,201.80 is: 192,302.70
Step by Step Solution
- Step 1: Write the proportion equation
349,846.60 : 524,769.90 = 128,201.80 : x - Step 2: Convert to fraction form
349,846.60/524,769.90 = 128,201.80/x - Step 3: Cross multiply
349,846.60x = 524,769.90 × 128,201.80 - Step 4: Simplify right side
349,846.60x = 67,276,445,765.82 - Step 5: Solve for x
x = 67,276,445,765.82/349,846.60 - Step 6: Final answer
x = 192,302.70
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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.