Finding the Fourth Proportional to 217,318.05, 299,961.36 and 131,263.34
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Solution
The fourth proportional to 217,318.05, 299,961.36 and 131,263.34 is: 181,181.12
Step by Step Solution
- Step 1: Write the proportion equation
217,318.05 : 299,961.36 = 131,263.34 : x - Step 2: Convert to fraction form
217,318.05/299,961.36 = 131,263.34/x - Step 3: Cross multiply
217,318.05x = 299,961.36 × 131,263.34 - Step 4: Simplify right side
217,318.05x = 39,373,928,484.74 - Step 5: Solve for x
x = 39,373,928,484.74/217,318.05 - Step 6: Final answer
x = 181,181.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.