Finding the Fourth Proportional to 387,033.98, 534,104.78 and 217,268.06
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Solution
The fourth proportional to 387,033.98, 534,104.78 and 217,268.06 is: 299,828.74
Step by Step Solution
- Step 1: Write the proportion equation
387,033.98 : 534,104.78 = 217,268.06 : x - Step 2: Convert to fraction form
387,033.98/534,104.78 = 217,268.06/x - Step 3: Cross multiply
387,033.98x = 534,104.78 × 217,268.06 - Step 4: Simplify right side
387,033.98x = 116,043,909,387.33 - Step 5: Solve for x
x = 116,043,909,387.33/387,033.98 - Step 6: Final answer
x = 299,828.74
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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.