Finding the Fourth Proportional to 286,059.39, 394,780.40 and 158,734.99
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Solution
The fourth proportional to 286,059.39, 394,780.40 and 158,734.99 is: 219,064.52
Step by Step Solution
- Step 1: Write the proportion equation
286,059.39 : 394,780.40 = 158,734.99 : x - Step 2: Convert to fraction form
286,059.39/394,780.40 = 158,734.99/x - Step 3: Cross multiply
286,059.39x = 394,780.40 × 158,734.99 - Step 4: Simplify right side
286,059.39x = 62,665,462,256.08 - Step 5: Solve for x
x = 62,665,462,256.08/286,059.39 - Step 6: Final answer
x = 219,064.52
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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.