Finding the Fourth Proportional to 138,177.97, 207,266.96 and 38,338.18
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Solution
The fourth proportional to 138,177.97, 207,266.96 and 38,338.18 is: 57,507.27
Step by Step Solution
- Step 1: Write the proportion equation
138,177.97 : 207,266.96 = 38,338.18 : x - Step 2: Convert to fraction form
138,177.97/207,266.96 = 38,338.18/x - Step 3: Cross multiply
138,177.97x = 207,266.96 × 38,338.18 - Step 4: Simplify right side
138,177.97x = 7,946,238,020.53 - Step 5: Solve for x
x = 7,946,238,020.53/138,177.97 - Step 6: Final answer
x = 57,507.27
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.