Finding the Fourth Proportional to 661,688.44, 992,438.74 and 212,351.08
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Solution
The fourth proportional to 661,688.44, 992,438.74 and 212,351.08 is: 318,496.48
Step by Step Solution
- Step 1: Write the proportion equation
661,688.44 : 992,438.74 = 212,351.08 : x - Step 2: Convert to fraction form
661,688.44/992,438.74 = 212,351.08/x - Step 3: Cross multiply
661,688.44x = 992,438.74 × 212,351.08 - Step 4: Simplify right side
661,688.44x = 210,745,438,272.84 - Step 5: Solve for x
x = 210,745,438,272.84/661,688.44 - Step 6: Final answer
x = 318,496.48
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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.