Finding the Fourth Proportional to 283,290.24, 390,968.20 and 211,545.84
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Solution
The fourth proportional to 283,290.24, 390,968.20 and 211,545.84 is: 291,953.92
Step by Step Solution
- Step 1: Write the proportion equation
283,290.24 : 390,968.20 = 211,545.84 : x - Step 2: Convert to fraction form
283,290.24/390,968.20 = 211,545.84/x - Step 3: Cross multiply
283,290.24x = 390,968.20 × 211,545.84 - Step 4: Simplify right side
283,290.24x = 82,707,696,282.29 - Step 5: Solve for x
x = 82,707,696,282.29/283,290.24 - Step 6: Final answer
x = 291,953.92
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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.