Finding the Fourth Proportional to 219,778.04, 303,332.52 and 129,133.98
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Solution
The fourth proportional to 219,778.04, 303,332.52 and 129,133.98 is: 178,227.71
Step by Step Solution
- Step 1: Write the proportion equation
219,778.04 : 303,332.52 = 129,133.98 : x - Step 2: Convert to fraction form
219,778.04/303,332.52 = 129,133.98/x - Step 3: Cross multiply
219,778.04x = 303,332.52 × 129,133.98 - Step 4: Simplify right side
219,778.04x = 39,170,535,571.03 - Step 5: Solve for x
x = 39,170,535,571.03/219,778.04 - Step 6: Final answer
x = 178,227.71
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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.