Finding the Fourth Proportional to 138,449.24, 207,670.87 and 38,606.77
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Solution
The fourth proportional to 138,449.24, 207,670.87 and 38,606.77 is: 57,909.32
Step by Step Solution
- Step 1: Write the proportion equation
138,449.24 : 207,670.87 = 38,606.77 : x - Step 2: Convert to fraction form
138,449.24/207,670.87 = 38,606.77/x - Step 3: Cross multiply
138,449.24x = 207,670.87 × 38,606.77 - Step 4: Simplify right side
138,449.24x = 8,017,500,898.10 - Step 5: Solve for x
x = 8,017,500,898.10/138,449.24 - Step 6: Final answer
x = 57,909.32
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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.