Finding the Fourth Proportional to 217,349.34, 299,970.99 and 126,707.10
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Solution
The fourth proportional to 217,349.34, 299,970.99 and 126,707.10 is: 174,872.65
Step by Step Solution
- Step 1: Write the proportion equation
217,349.34 : 299,970.99 = 126,707.10 : x - Step 2: Convert to fraction form
217,349.34/299,970.99 = 126,707.10/x - Step 3: Cross multiply
217,349.34x = 299,970.99 × 126,707.10 - Step 4: Simplify right side
217,349.34x = 38,008,454,227.03 - Step 5: Solve for x
x = 38,008,454,227.03/217,349.34 - Step 6: Final answer
x = 174,872.65
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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.