Finding the Fourth Proportional to 217,245.14, 299,815.98 and 120,458.59
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Solution
The fourth proportional to 217,245.14, 299,815.98 and 120,458.59 is: 166,242.67
Step by Step Solution
- Step 1: Write the proportion equation
217,245.14 : 299,815.98 = 120,458.59 : x - Step 2: Convert to fraction form
217,245.14/299,815.98 = 120,458.59/x - Step 3: Cross multiply
217,245.14x = 299,815.98 × 120,458.59 - Step 4: Simplify right side
217,245.14x = 36,115,411,373.05 - Step 5: Solve for x
x = 36,115,411,373.05/217,245.14 - Step 6: Final answer
x = 166,242.67
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1.5x scale
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.