Finding the Fourth Proportional to 216,811.01, 299,163.48 and 136,181.09
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Solution
The fourth proportional to 216,811.01, 299,163.48 and 136,181.09 is: 187,907.47
Step by Step Solution
- Step 1: Write the proportion equation
216,811.01 : 299,163.48 = 136,181.09 : x - Step 2: Convert to fraction form
216,811.01/299,163.48 = 136,181.09/x - Step 3: Cross multiply
216,811.01x = 299,163.48 × 136,181.09 - Step 4: Simplify right side
216,811.01x = 40,740,408,794.59 - Step 5: Solve for x
x = 40,740,408,794.59/216,811.01 - Step 6: Final answer
x = 187,907.47
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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.