Finding the Fourth Proportional to 286,102.36, 394,813.74 and 158,774.68
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Solution
The fourth proportional to 286,102.36, 394,813.74 and 158,774.68 is: 219,104.89
Step by Step Solution
- Step 1: Write the proportion equation
286,102.36 : 394,813.74 = 158,774.68 : x - Step 2: Convert to fraction form
286,102.36/394,813.74 = 158,774.68/x - Step 3: Cross multiply
286,102.36x = 394,813.74 × 158,774.68 - Step 4: Simplify right side
286,102.36x = 62,686,425,228.10 - Step 5: Solve for x
x = 62,686,425,228.10/286,102.36 - Step 6: Final answer
x = 219,104.89
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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.