Finding the Fourth Proportional to 203,494.80, 305,031.60 and 91,228.80
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Solution
The fourth proportional to 203,494.80, 305,031.60 and 91,228.80 is: 136,748.79
Step by Step Solution
- Step 1: Write the proportion equation
203,494.80 : 305,031.60 = 91,228.80 : x - Step 2: Convert to fraction form
203,494.80/305,031.60 = 91,228.80/x - Step 3: Cross multiply
203,494.80x = 305,031.60 × 91,228.80 - Step 4: Simplify right side
203,494.80x = 27,827,666,830.08 - Step 5: Solve for x
x = 27,827,666,830.08/203,494.80 - Step 6: Final answer
x = 136,748.79
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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.