Finding the Fourth Proportional to 219,133.36, 328,749.30 and 69,382.60
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Solution
The fourth proportional to 219,133.36, 328,749.30 and 69,382.60 is: 104,089.50
Step by Step Solution
- Step 1: Write the proportion equation
219,133.36 : 328,749.30 = 69,382.60 : x - Step 2: Convert to fraction form
219,133.36/328,749.30 = 69,382.60/x - Step 3: Cross multiply
219,133.36x = 328,749.30 × 69,382.60 - Step 4: Simplify right side
219,133.36x = 22,809,481,182.18 - Step 5: Solve for x
x = 22,809,481,182.18/219,133.36 - Step 6: Final answer
x = 104,089.50
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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.