Finding the Fourth Proportional to 165,787.70, 248,681.55 and 54,979.70
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Solution
The fourth proportional to 165,787.70, 248,681.55 and 54,979.70 is: 82,469.55
Step by Step Solution
- Step 1: Write the proportion equation
165,787.70 : 248,681.55 = 54,979.70 : x - Step 2: Convert to fraction form
165,787.70/248,681.55 = 54,979.70/x - Step 3: Cross multiply
165,787.70x = 248,681.55 × 54,979.70 - Step 4: Simplify right side
165,787.70x = 13,672,437,014.54 - Step 5: Solve for x
x = 13,672,437,014.54/165,787.70 - Step 6: Final answer
x = 82,469.55
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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.