Finding the Fourth Proportional to 217,511.25, 300,098.25 and 126,802.99
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Solution
The fourth proportional to 217,511.25, 300,098.25 and 126,802.99 is: 174,948.91
Step by Step Solution
- Step 1: Write the proportion equation
217,511.25 : 300,098.25 = 126,802.99 : x - Step 2: Convert to fraction form
217,511.25/300,098.25 = 126,802.99/x - Step 3: Cross multiply
217,511.25x = 300,098.25 × 126,802.99 - Step 4: Simplify right side
217,511.25x = 38,053,355,393.77 - Step 5: Solve for x
x = 38,053,355,393.77/217,511.25 - Step 6: Final answer
x = 174,948.91
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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.