Finding the Fourth Proportional to 219,729.28, 329,593.84 and 79,455.12
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Solution
The fourth proportional to 219,729.28, 329,593.84 and 79,455.12 is: 119,182.65
Step by Step Solution
- Step 1: Write the proportion equation
219,729.28 : 329,593.84 = 79,455.12 : x - Step 2: Convert to fraction form
219,729.28/329,593.84 = 79,455.12/x - Step 3: Cross multiply
219,729.28x = 329,593.84 × 79,455.12 - Step 4: Simplify right side
219,729.28x = 26,187,918,108.46 - Step 5: Solve for x
x = 26,187,918,108.46/219,729.28 - Step 6: Final answer
x = 119,182.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.