Finding the Fourth Proportional to 211,068.36, 291,216.60 and 135,660.60
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Solution
The fourth proportional to 211,068.36, 291,216.60 and 135,660.60 is: 187,174.52
Step by Step Solution
- Step 1: Write the proportion equation
211,068.36 : 291,216.60 = 135,660.60 : x - Step 2: Convert to fraction form
211,068.36/291,216.60 = 135,660.60/x - Step 3: Cross multiply
211,068.36x = 291,216.60 × 135,660.60 - Step 4: Simplify right side
211,068.36x = 39,506,618,685.96 - Step 5: Solve for x
x = 39,506,618,685.96/211,068.36 - Step 6: Final answer
x = 187,174.52
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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.