Finding the Fourth Proportional to 378,472.50, 567,708.84 and 153,955.08
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Solution
The fourth proportional to 378,472.50, 567,708.84 and 153,955.08 is: 230,932.66
Step by Step Solution
- Step 1: Write the proportion equation
378,472.50 : 567,708.84 = 153,955.08 : x - Step 2: Convert to fraction form
378,472.50/567,708.84 = 153,955.08/x - Step 3: Cross multiply
378,472.50x = 567,708.84 × 153,955.08 - Step 4: Simplify right side
378,472.50x = 87,401,659,878.91 - Step 5: Solve for x
x = 87,401,659,878.91/378,472.50 - Step 6: Final answer
x = 230,932.66
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1.5x scale
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.