Finding the Fourth Proportional to 279,083.05, 385,151.40 and 164,438.09
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Solution
The fourth proportional to 279,083.05, 385,151.40 and 164,438.09 is: 226,934.46
Step by Step Solution
- Step 1: Write the proportion equation
279,083.05 : 385,151.40 = 164,438.09 : x - Step 2: Convert to fraction form
279,083.05/385,151.40 = 164,438.09/x - Step 3: Cross multiply
279,083.05x = 385,151.40 × 164,438.09 - Step 4: Simplify right side
279,083.05x = 63,333,560,576.83 - Step 5: Solve for x
x = 63,333,560,576.83/279,083.05 - Step 6: Final answer
x = 226,934.46
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1.5x scale
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.