Finding the Fourth Proportional to 282,787.08, 390,246.42 and 155,464.84
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Solution
The fourth proportional to 282,787.08, 390,246.42 and 155,464.84 is: 214,541.62
Step by Step Solution
- Step 1: Write the proportion equation
282,787.08 : 390,246.42 = 155,464.84 : x - Step 2: Convert to fraction form
282,787.08/390,246.42 = 155,464.84/x - Step 3: Cross multiply
282,787.08x = 390,246.42 × 155,464.84 - Step 4: Simplify right side
282,787.08x = 60,669,597,245.87 - Step 5: Solve for x
x = 60,669,597,245.87/282,787.08 - Step 6: Final answer
x = 214,541.62
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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.