Finding the Fourth Proportional to 447,142.14, 616,874.06 and 253,509.08
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Solution
The fourth proportional to 447,142.14, 616,874.06 and 253,509.08 is: 349,739.29
Step by Step Solution
- Step 1: Write the proportion equation
447,142.14 : 616,874.06 = 253,509.08 : x - Step 2: Convert to fraction form
447,142.14/616,874.06 = 253,509.08/x - Step 3: Cross multiply
447,142.14x = 616,874.06 × 253,509.08 - Step 4: Simplify right side
447,142.14x = 156,383,172,975.87 - Step 5: Solve for x
x = 156,383,172,975.87/447,142.14 - Step 6: Final answer
x = 349,739.29
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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.