Finding the Fourth Proportional to 138,291.29, 207,486.75 and 48,347.27
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Solution
The fourth proportional to 138,291.29, 207,486.75 and 48,347.27 is: 72,538.32
Step by Step Solution
- Step 1: Write the proportion equation
138,291.29 : 207,486.75 = 48,347.27 : x - Step 2: Convert to fraction form
138,291.29/207,486.75 = 48,347.27/x - Step 3: Cross multiply
138,291.29x = 207,486.75 × 48,347.27 - Step 4: Simplify right side
138,291.29x = 10,031,417,923.67 - Step 5: Solve for x
x = 10,031,417,923.67/138,291.29 - Step 6: Final answer
x = 72,538.32
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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.