Finding the Fourth Proportional to 208,914.36, 288,367.56 and 133,462.84
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Solution
The fourth proportional to 208,914.36, 288,367.56 and 133,462.84 is: 184,220.72
Step by Step Solution
- Step 1: Write the proportion equation
208,914.36 : 288,367.56 = 133,462.84 : x - Step 2: Convert to fraction form
208,914.36/288,367.56 = 133,462.84/x - Step 3: Cross multiply
208,914.36x = 288,367.56 × 133,462.84 - Step 4: Simplify right side
208,914.36x = 38,486,353,521.47 - Step 5: Solve for x
x = 38,486,353,521.47/208,914.36 - Step 6: Final answer
x = 184,220.72
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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.