Finding the Fourth Proportional to 575,986.19, 863,891.80 and 221,167.31
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Solution
The fourth proportional to 575,986.19, 863,891.80 and 221,167.31 is: 331,717.37
Step by Step Solution
- Step 1: Write the proportion equation
575,986.19 : 863,891.80 = 221,167.31 : x - Step 2: Convert to fraction form
575,986.19/863,891.80 = 221,167.31/x - Step 3: Cross multiply
575,986.19x = 863,891.80 × 221,167.31 - Step 4: Simplify right side
575,986.19x = 191,064,625,537.06 - Step 5: Solve for x
x = 191,064,625,537.06/575,986.19 - Step 6: Final answer
x = 331,717.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.