Finding the Fourth Proportional to 212,291.28, 292,964.28 and 115,495.67
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Solution
The fourth proportional to 212,291.28, 292,964.28 and 115,495.67 is: 159,385.28
Step by Step Solution
- Step 1: Write the proportion equation
212,291.28 : 292,964.28 = 115,495.67 : x - Step 2: Convert to fraction form
212,291.28/292,964.28 = 115,495.67/x - Step 3: Cross multiply
212,291.28x = 292,964.28 × 115,495.67 - Step 4: Simplify right side
212,291.28x = 33,836,106,103.97 - Step 5: Solve for x
x = 33,836,106,103.97/212,291.28 - Step 6: Final answer
x = 159,385.28
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1.5x scale
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.