Finding the Fourth Proportional to 217,349.59, 299,971.34 and 126,707.35
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Solution
The fourth proportional to 217,349.59, 299,971.34 and 126,707.35 is: 174,872.99
Step by Step Solution
- Step 1: Write the proportion equation
217,349.59 : 299,971.34 = 126,707.35 : x - Step 2: Convert to fraction form
217,349.59/299,971.34 = 126,707.35/x - Step 3: Cross multiply
217,349.59x = 299,971.34 × 126,707.35 - Step 4: Simplify right side
217,349.59x = 38,008,572,933.81 - Step 5: Solve for x
x = 38,008,572,933.81/217,349.59 - Step 6: Final answer
x = 174,872.99
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1.5x scale
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.