Finding the Fourth Proportional to 286,701.66, 395,658.45 and 157,649.96
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Solution
The fourth proportional to 286,701.66, 395,658.45 and 157,649.96 is: 217,562.53
Step by Step Solution
- Step 1: Write the proportion equation
286,701.66 : 395,658.45 = 157,649.96 : x - Step 2: Convert to fraction form
286,701.66/395,658.45 = 157,649.96/x - Step 3: Cross multiply
286,701.66x = 395,658.45 × 157,649.96 - Step 4: Simplify right side
286,701.66x = 62,375,538,027.91 - Step 5: Solve for x
x = 62,375,538,027.91/286,701.66 - Step 6: Final answer
x = 217,562.53
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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.