Finding the Fourth Proportional to 304,879.21, 420,722.14 and 175,823.13
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Solution
The fourth proportional to 304,879.21, 420,722.14 and 175,823.13 is: 242,629.47
Step by Step Solution
- Step 1: Write the proportion equation
304,879.21 : 420,722.14 = 175,823.13 : x - Step 2: Convert to fraction form
304,879.21/420,722.14 = 175,823.13/x - Step 3: Cross multiply
304,879.21x = 420,722.14 × 175,823.13 - Step 4: Simplify right side
304,879.21x = 73,972,680,532.37 - Step 5: Solve for x
x = 73,972,680,532.37/304,879.21 - Step 6: Final answer
x = 242,629.47
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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.