Finding the Fourth Proportional to 146,346.92, 201,958.08 and 79,278.92
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Solution
The fourth proportional to 146,346.92, 201,958.08 and 79,278.92 is: 109,404.55
Step by Step Solution
- Step 1: Write the proportion equation
146,346.92 : 201,958.08 = 79,278.92 : x - Step 2: Convert to fraction form
146,346.92/201,958.08 = 79,278.92/x - Step 3: Cross multiply
146,346.92x = 201,958.08 × 79,278.92 - Step 4: Simplify right side
146,346.92x = 16,011,018,467.67 - Step 5: Solve for x
x = 16,011,018,467.67/146,346.92 - Step 6: Final answer
x = 109,404.55
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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.