Finding the Fourth Proportional to 138,784, 208,181.76 and 40,288
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Solution
The fourth proportional to 138,784, 208,181.76 and 40,288 is: 60,433.67
Step by Step Solution
- Step 1: Write the proportion equation
138,784 : 208,181.76 = 40,288 : x - Step 2: Convert to fraction form
138,784/208,181.76 = 40,288/x - Step 3: Cross multiply
138,784x = 208,181.76 × 40,288 - Step 4: Simplify right side
138,784x = 8,387,226,746.88 - Step 5: Solve for x
x = 8,387,226,746.88/138,784 - Step 6: Final answer
x = 60,433.67
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.