Finding the Fourth Proportional to 219,988.75, 303,588.12 and 119,386.75
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Solution
The fourth proportional to 219,988.75, 303,588.12 and 119,386.75 is: 164,755.69
Step by Step Solution
- Step 1: Write the proportion equation
219,988.75 : 303,588.12 = 119,386.75 : x - Step 2: Convert to fraction form
219,988.75/303,588.12 = 119,386.75/x - Step 3: Cross multiply
219,988.75x = 303,588.12 × 119,386.75 - Step 4: Simplify right side
219,988.75x = 36,244,398,985.41 - Step 5: Solve for x
x = 36,244,398,985.41/219,988.75 - Step 6: Final answer
x = 164,755.69
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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.