Finding the Fourth Proportional to 272,027.70, 408,041.55 and 261,659.70
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Solution
The fourth proportional to 272,027.70, 408,041.55 and 261,659.70 is: 392,489.55
Step by Step Solution
- Step 1: Write the proportion equation
272,027.70 : 408,041.55 = 261,659.70 : x - Step 2: Convert to fraction form
272,027.70/408,041.55 = 261,659.70/x - Step 3: Cross multiply
272,027.70x = 408,041.55 × 261,659.70 - Step 4: Simplify right side
272,027.70x = 106,768,029,560.54 - Step 5: Solve for x
x = 106,768,029,560.54/272,027.70 - Step 6: Final answer
x = 392,489.55
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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.