Finding the Fourth Proportional to 217,266.55, 299,822.71 and 120,469.93
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Solution
The fourth proportional to 217,266.55, 299,822.71 and 120,469.93 is: 166,245.66
Step by Step Solution
- Step 1: Write the proportion equation
217,266.55 : 299,822.71 = 120,469.93 : x - Step 2: Convert to fraction form
217,266.55/299,822.71 = 120,469.93/x - Step 3: Cross multiply
217,266.55x = 299,822.71 × 120,469.93 - Step 4: Simplify right side
217,266.55x = 36,119,620,886.11 - Step 5: Solve for x
x = 36,119,620,886.11/217,266.55 - Step 6: Final answer
x = 166,245.66
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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.