Finding the Fourth Proportional to 212,671.21, 293,492.91 and 122,043.75
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Solution
The fourth proportional to 212,671.21, 293,492.91 and 122,043.75 is: 168,424.19
Step by Step Solution
- Step 1: Write the proportion equation
212,671.21 : 293,492.91 = 122,043.75 : x - Step 2: Convert to fraction form
212,671.21/293,492.91 = 122,043.75/x - Step 3: Cross multiply
212,671.21x = 293,492.91 × 122,043.75 - Step 4: Simplify right side
212,671.21x = 35,818,975,844.24 - Step 5: Solve for x
x = 35,818,975,844.24/212,671.21 - Step 6: Final answer
x = 168,424.19
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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.