Finding the Fourth Proportional to 283,242.06, 390,873.99 and 155,917.62
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Solution
The fourth proportional to 283,242.06, 390,873.99 and 155,917.62 is: 215,166.29
Step by Step Solution
- Step 1: Write the proportion equation
283,242.06 : 390,873.99 = 155,917.62 : x - Step 2: Convert to fraction form
283,242.06/390,873.99 = 155,917.62/x - Step 3: Cross multiply
283,242.06x = 390,873.99 × 155,917.62 - Step 4: Simplify right side
283,242.06x = 60,944,142,240.70 - Step 5: Solve for x
x = 60,944,142,240.70/283,242.06 - Step 6: Final answer
x = 215,166.29
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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.