Finding the Fourth Proportional to 286,395.96, 395,215.44 and 159,079.68
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Solution
The fourth proportional to 286,395.96, 395,215.44 and 159,079.68 is: 219,523.86
Step by Step Solution
- Step 1: Write the proportion equation
286,395.96 : 395,215.44 = 159,079.68 : x - Step 2: Convert to fraction form
286,395.96/395,215.44 = 159,079.68/x - Step 3: Cross multiply
286,395.96x = 395,215.44 × 159,079.68 - Step 4: Simplify right side
286,395.96x = 62,870,745,726.26 - Step 5: Solve for x
x = 62,870,745,726.26/286,395.96 - Step 6: Final answer
x = 219,523.86
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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.