Finding the Fourth Proportional to 442,855.70, 664,283.55 and 256,231.70
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Solution
The fourth proportional to 442,855.70, 664,283.55 and 256,231.70 is: 384,347.55
Step by Step Solution
- Step 1: Write the proportion equation
442,855.70 : 664,283.55 = 256,231.70 : x - Step 2: Convert to fraction form
442,855.70/664,283.55 = 256,231.70/x - Step 3: Cross multiply
442,855.70x = 664,283.55 × 256,231.70 - Step 4: Simplify right side
442,855.70x = 170,210,503,298.54 - Step 5: Solve for x
x = 170,210,503,298.54/442,855.70 - Step 6: Final answer
x = 384,347.55
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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.