Finding the Fourth Proportional to 221,107.47, 305,090.06 and 130,456.59
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Solution
The fourth proportional to 221,107.47, 305,090.06 and 130,456.59 is: 180,007.52
Step by Step Solution
- Step 1: Write the proportion equation
221,107.47 : 305,090.06 = 130,456.59 : x - Step 2: Convert to fraction form
221,107.47/305,090.06 = 130,456.59/x - Step 3: Cross multiply
221,107.47x = 305,090.06 × 130,456.59 - Step 4: Simplify right side
221,107.47x = 39,801,008,218.21 - Step 5: Solve for x
x = 39,801,008,218.21/221,107.47 - Step 6: Final answer
x = 180,007.52
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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.