Finding the Fourth Proportional to 286,866.28, 395,866.50 and 157,804.12
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Solution
The fourth proportional to 286,866.28, 395,866.50 and 157,804.12 is: 217,764.75
Step by Step Solution
- Step 1: Write the proportion equation
286,866.28 : 395,866.50 = 157,804.12 : x - Step 2: Convert to fraction form
286,866.28/395,866.50 = 157,804.12/x - Step 3: Cross multiply
286,866.28x = 395,866.50 × 157,804.12 - Step 4: Simplify right side
286,866.28x = 62,469,364,669.98 - Step 5: Solve for x
x = 62,469,364,669.98/286,866.28 - Step 6: Final answer
x = 217,764.75
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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.