Finding the Fourth Proportional to 316,320.90, 474,481.35 and 129,288.66
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Solution
The fourth proportional to 316,320.90, 474,481.35 and 129,288.66 is: 193,932.99
Step by Step Solution
- Step 1: Write the proportion equation
316,320.90 : 474,481.35 = 129,288.66 : x - Step 2: Convert to fraction form
316,320.90/474,481.35 = 129,288.66/x - Step 3: Cross multiply
316,320.90x = 474,481.35 × 129,288.66 - Step 4: Simplify right side
316,320.90x = 61,345,057,936.49 - Step 5: Solve for x
x = 61,345,057,936.49/316,320.90 - Step 6: Final answer
x = 193,932.99
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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.