Finding the Fourth Proportional to 211,905.18, 292,512.45 and 127,005.84
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Solution
The fourth proportional to 211,905.18, 292,512.45 and 127,005.84 is: 175,317.99
Step by Step Solution
- Step 1: Write the proportion equation
211,905.18 : 292,512.45 = 127,005.84 : x - Step 2: Convert to fraction form
211,905.18/292,512.45 = 127,005.84/x - Step 3: Cross multiply
211,905.18x = 292,512.45 × 127,005.84 - Step 4: Simplify right side
211,905.18x = 37,150,789,422.71 - Step 5: Solve for x
x = 37,150,789,422.71/211,905.18 - Step 6: Final answer
x = 175,317.99
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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.