Finding the Fourth Proportional to 282,545.76, 389,896.95 and 155,218.62
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Solution
The fourth proportional to 282,545.76, 389,896.95 and 155,218.62 is: 214,192.80
Step by Step Solution
- Step 1: Write the proportion equation
282,545.76 : 389,896.95 = 155,218.62 : x - Step 2: Convert to fraction form
282,545.76/389,896.95 = 155,218.62/x - Step 3: Cross multiply
282,545.76x = 389,896.95 × 155,218.62 - Step 4: Simplify right side
282,545.76x = 60,519,266,521.21 - Step 5: Solve for x
x = 60,519,266,521.21/282,545.76 - Step 6: Final answer
x = 214,192.80
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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.