Finding the Fourth Proportional to 283,253.23, 390,889.49 and 155,928.84
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Solution
The fourth proportional to 283,253.23, 390,889.49 and 155,928.84 is: 215,181.82
Step by Step Solution
- Step 1: Write the proportion equation
283,253.23 : 390,889.49 = 155,928.84 : x - Step 2: Convert to fraction form
283,253.23/390,889.49 = 155,928.84/x - Step 3: Cross multiply
283,253.23x = 390,889.49 × 155,928.84 - Step 4: Simplify right side
283,253.23x = 60,950,944,743.89 - Step 5: Solve for x
x = 60,950,944,743.89/283,253.23 - Step 6: Final answer
x = 215,181.82
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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.