Finding the Fourth Proportional to 491,221.76, 736,832.58 and 136,235.76
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Solution
The fourth proportional to 491,221.76, 736,832.58 and 136,235.76 is: 204,353.63
Step by Step Solution
- Step 1: Write the proportion equation
491,221.76 : 736,832.58 = 136,235.76 : x - Step 2: Convert to fraction form
491,221.76/736,832.58 = 136,235.76/x - Step 3: Cross multiply
491,221.76x = 736,832.58 × 136,235.76 - Step 4: Simplify right side
491,221.76x = 100,382,946,529.06 - Step 5: Solve for x
x = 100,382,946,529.06/491,221.76 - Step 6: Final answer
x = 204,353.63
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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.