Finding the Fourth Proportional to 283,228.84, 390,840.78 and 155,879.92
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Solution
The fourth proportional to 283,228.84, 390,840.78 and 155,879.92 is: 215,106.02
Step by Step Solution
- Step 1: Write the proportion equation
283,228.84 : 390,840.78 = 155,879.92 : x - Step 2: Convert to fraction form
283,228.84/390,840.78 = 155,879.92/x - Step 3: Cross multiply
283,228.84x = 390,840.78 × 155,879.92 - Step 4: Simplify right side
283,228.84x = 60,924,229,519.14 - Step 5: Solve for x
x = 60,924,229,519.14/283,228.84 - Step 6: Final answer
x = 215,106.02
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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.