Finding the Fourth Proportional to 208,515.87, 312,871.01 and 124,272.63
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Solution
The fourth proportional to 208,515.87, 312,871.01 and 124,272.63 is: 186,466.87
Step by Step Solution
- Step 1: Write the proportion equation
208,515.87 : 312,871.01 = 124,272.63 : x - Step 2: Convert to fraction form
208,515.87/312,871.01 = 124,272.63/x - Step 3: Cross multiply
208,515.87x = 312,871.01 × 124,272.63 - Step 4: Simplify right side
208,515.87x = 38,881,302,642.09 - Step 5: Solve for x
x = 38,881,302,642.09/208,515.87 - Step 6: Final answer
x = 186,466.87
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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.