Finding the Fourth Proportional to 317,893.06, 476,839.81 and 81,235.96
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Solution
The fourth proportional to 317,893.06, 476,839.81 and 81,235.96 is: 121,854.00
Step by Step Solution
- Step 1: Write the proportion equation
317,893.06 : 476,839.81 = 81,235.96 : x - Step 2: Convert to fraction form
317,893.06/476,839.81 = 81,235.96/x - Step 3: Cross multiply
317,893.06x = 476,839.81 × 81,235.96 - Step 4: Simplify right side
317,893.06x = 38,736,541,323.24 - Step 5: Solve for x
x = 38,736,541,323.24/317,893.06 - Step 6: Final answer
x = 121,854.00
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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.