Finding the Fourth Proportional to 212,811.99, 293,682.51 and 117,322.11
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Solution
The fourth proportional to 212,811.99, 293,682.51 and 117,322.11 is: 161,905.59
Step by Step Solution
- Step 1: Write the proportion equation
212,811.99 : 293,682.51 = 117,322.11 : x - Step 2: Convert to fraction form
212,811.99/293,682.51 = 117,322.11/x - Step 3: Cross multiply
212,811.99x = 293,682.51 × 117,322.11 - Step 4: Simplify right side
212,811.99x = 34,455,451,743.30 - Step 5: Solve for x
x = 34,455,451,743.30/212,811.99 - Step 6: Final answer
x = 161,905.59
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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.