Finding the Fourth Proportional to 212,563.64, 293,316.12 and 130,878.92
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Solution
The fourth proportional to 212,563.64, 293,316.12 and 130,878.92 is: 180,599.55
Step by Step Solution
- Step 1: Write the proportion equation
212,563.64 : 293,316.12 = 130,878.92 : x - Step 2: Convert to fraction form
212,563.64/293,316.12 = 130,878.92/x - Step 3: Cross multiply
212,563.64x = 293,316.12 × 130,878.92 - Step 4: Simplify right side
212,563.64x = 38,388,897,737.48 - Step 5: Solve for x
x = 38,388,897,737.48/212,563.64 - Step 6: Final answer
x = 180,599.55
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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.