Finding the Fourth Proportional to 283,246.76, 390,880.50 and 155,921.42
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Solution
The fourth proportional to 283,246.76, 390,880.50 and 155,921.42 is: 215,171.54
Step by Step Solution
- Step 1: Write the proportion equation
283,246.76 : 390,880.50 = 155,921.42 : x - Step 2: Convert to fraction form
283,246.76/390,880.50 = 155,921.42/x - Step 3: Cross multiply
283,246.76x = 390,880.50 × 155,921.42 - Step 4: Simplify right side
283,246.76x = 60,946,642,610.31 - Step 5: Solve for x
x = 60,946,642,610.31/283,246.76 - Step 6: Final answer
x = 215,171.54
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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.