Finding the Fourth Proportional to 212,007.48, 318,022.08 and 54,237.28
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Solution
The fourth proportional to 212,007.48, 318,022.08 and 54,237.28 is: 81,358.70
Step by Step Solution
- Step 1: Write the proportion equation
212,007.48 : 318,022.08 = 54,237.28 : x - Step 2: Convert to fraction form
212,007.48/318,022.08 = 54,237.28/x - Step 3: Cross multiply
212,007.48x = 318,022.08 × 54,237.28 - Step 4: Simplify right side
212,007.48x = 17,248,652,599.14 - Step 5: Solve for x
x = 17,248,652,599.14/212,007.48 - Step 6: Final answer
x = 81,358.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.