Finding the Fourth Proportional to 211,817.63, 292,235.23 and 135,381.47
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Solution
The fourth proportional to 211,817.63, 292,235.23 and 135,381.47 is: 186,779.71
Step by Step Solution
- Step 1: Write the proportion equation
211,817.63 : 292,235.23 = 135,381.47 : x - Step 2: Convert to fraction form
211,817.63/292,235.23 = 135,381.47/x - Step 3: Cross multiply
211,817.63x = 292,235.23 × 135,381.47 - Step 4: Simplify right side
211,817.63x = 39,563,235,023.19 - Step 5: Solve for x
x = 39,563,235,023.19/211,817.63 - Step 6: Final answer
x = 186,779.71
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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.