Finding the Fourth Proportional to 149,021.75, 223,533.17 and 141,547.07
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Solution
The fourth proportional to 149,021.75, 223,533.17 and 141,547.07 is: 212,321.12
Step by Step Solution
- Step 1: Write the proportion equation
149,021.75 : 223,533.17 = 141,547.07 : x - Step 2: Convert to fraction form
149,021.75/223,533.17 = 141,547.07/x - Step 3: Cross multiply
149,021.75x = 223,533.17 × 141,547.07 - Step 4: Simplify right side
149,021.75x = 31,640,465,261.31 - Step 5: Solve for x
x = 31,640,465,261.31/149,021.75 - Step 6: Final answer
x = 212,321.12
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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.