Finding the Fourth Proportional to 402,568.06, 555,537.53 and 221,276.09
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Solution
The fourth proportional to 402,568.06, 555,537.53 and 221,276.09 is: 305,357.49
Step by Step Solution
- Step 1: Write the proportion equation
402,568.06 : 555,537.53 = 221,276.09 : x - Step 2: Convert to fraction form
402,568.06/555,537.53 = 221,276.09/x - Step 3: Cross multiply
402,568.06x = 555,537.53 × 221,276.09 - Step 4: Simplify right side
402,568.06x = 122,927,172,486.66 - Step 5: Solve for x
x = 122,927,172,486.66/402,568.06 - Step 6: Final answer
x = 305,357.49
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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.