Finding the Fourth Proportional to 138,407.05, 207,610.71 and 38,567.53
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Solution
The fourth proportional to 138,407.05, 207,610.71 and 38,567.53 is: 57,851.33
Step by Step Solution
- Step 1: Write the proportion equation
138,407.05 : 207,610.71 = 38,567.53 : x - Step 2: Convert to fraction form
138,407.05/207,610.71 = 38,567.53/x - Step 3: Cross multiply
138,407.05x = 207,610.71 × 38,567.53 - Step 4: Simplify right side
138,407.05x = 8,007,032,286.25 - Step 5: Solve for x
x = 8,007,032,286.25/138,407.05 - Step 6: Final answer
x = 57,851.33
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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.