Finding the Fourth Proportional to 165,793.70, 248,690.55 and 54,985.70
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Solution
The fourth proportional to 165,793.70, 248,690.55 and 54,985.70 is: 82,478.55
Step by Step Solution
- Step 1: Write the proportion equation
165,793.70 : 248,690.55 = 54,985.70 : x - Step 2: Convert to fraction form
165,793.70/248,690.55 = 54,985.70/x - Step 3: Cross multiply
165,793.70x = 248,690.55 × 54,985.70 - Step 4: Simplify right side
165,793.70x = 13,674,423,975.14 - Step 5: Solve for x
x = 13,674,423,975.14/165,793.70 - Step 6: Final answer
x = 82,478.55
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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.