Finding the Fourth Proportional to 278,943.97, 385,128.05 and 214,298.07
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Solution
The fourth proportional to 278,943.97, 385,128.05 and 214,298.07 is: 295,873.75
Step by Step Solution
- Step 1: Write the proportion equation
278,943.97 : 385,128.05 = 214,298.07 : x - Step 2: Convert to fraction form
278,943.97/385,128.05 = 214,298.07/x - Step 3: Cross multiply
278,943.97x = 385,128.05 × 214,298.07 - Step 4: Simplify right side
278,943.97x = 82,532,196,746.37 - Step 5: Solve for x
x = 82,532,196,746.37/278,943.97 - Step 6: Final answer
x = 295,873.75
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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.